Winter begins early. Chris thinks about how Mike won’t go out to dig Larissa’s car out of the snow (which she complains about) or take her to work, as he often suggests. At three o’clock in the morning, Chris can’t stop thinking about this, and he drives to Larissa’s to dig out her car. He feels like he needs to put more space between himself and Larissa, but being away from her feels even worse as his feelings for her get stronger. He begins to resent Mike more for not taking care of her the way he wants to.

As Mike packs up some of Larissa’s things for his place, Nancy reminds Larissa that she can come with her and Phil, who just got his third recent DWI (driving while intoxicated/impaired) last night. Larissa fears for her mother, who also fears for her, as both women question whether the other is happy.

When Mike returns from packing boxes in his truck, Larissa thanks him for clearing the snow off her car, but he says he didn’t do it, and Larissa worries that she has a stalker. When Mike is out of the way, Nancy whispers to Larissa to suggest that Chris cleared the snow off her car. Larissa doesn’t want to believe this but knows it must be true. It bothers her that Chris didn’t tell her, and she wonders what else he wasn’t taking credit for.

Larissa comes to fill a delivery order at Chris’s pharmacy and gives him a sentimental, handmade gift. Chris is moved, knowing the time it would have taken to do this and how time is money for Larissa. She asks Chris if he has a membership to a wholesale club to buy things for her graze boards, and when he says he does, they agree to meet up later to go.

When Larissa leaves, Chris calls Mike to ask him if he wants to come shopping with them, but he can’t. Mike drops the fact that Larissa is moving in with him, stunning Chris. Chris finally realizes that he’s in love with Larissa and feels terrible about it, even if she doesn’t know. Chris leaves work early, buys Larissa a membership to the wholesale club so that she can go on her own, and calls a woman named Heather, whom his co-worker had been trying to set him up with.

Chris had claimed to be sick when he left the pharmacy, and he isn’t there when Larissa comes back to see him a few minutes later. She’s nervous about moving in with Mike tomorrow, feeling like she must be making a mistake, though she knows she’s making the logical choice. Larissa also feels down about Chris standing her up.

She heads to Mike’s early. When she calls Mike to tell him this, he doesn’t answer, but she has his keys, so she goes in anyway. She’s surprised to see fast-food wrappers and an empty bottle of vodka in his living room, and she suspects that a friend was over the night before. However, as she turns the corner, she sees Mike has passed out drunk in his own vomit on the floor of the hallway.

Larissa calls Lexi the next morning, asking her if she can bring her steam cleaner to Mike’s place. After they clean up the vomit, Larissa tells Lexi about how she found Mike, along with a receipt for the bottle of vodka that had been bought only two hours before she arrived. All of Larissa’s fears about Mike were confirmed, especially when he got up the next morning, took a shower, and left for the cabin, telling Larissa that he had a migraine as if he didn’t remember the events of the previous night. Lexi suggests that Larissa tell Chris. While Larissa wants to take care of Mike, she doesn’t want to have to take care of a man as she did with her father or any other man her mother dated.

When she calls Mike at the cabin over the next few days, he doesn’t remember the night she moved in and is always drunk. Larissa wants to talk with Chris but is surprised to see that someone else is with him when he arrives to pick her up for the cabin. Chris tells her that the woman in his car is his girlfriend, Heather. Larissa feels strangely betrayed, as if Chris has failed her, but she feels like she can’t turn around and go back to Mike’s house. Larissa feels terrible on the car ride, like everything is wrong. She’s more upset with Chris than she is with Mike, and she throws up in the car.

Chris also feels terrible during the car ride, knowing that he purposefully ruined it because he’s still in love with Larissa and doesn’t care about Heather. He’s tried to speed up his forgetting of Larissa with Heather but feels sick being with her.

Chris goes outside to shovel snow with the rest of the men, but when Mike and Jesse go somewhere else, Xavier asks Chris how he feels. Chris knows that Xavier knows about his feelings for Larissa, and both of them know that they could never be together.

Mike corners Larissa in their room to ask if they’re okay, after she’s been mostly dodging him for the six hours since she’s been there. Larissa tells Mike what happened the other night, but he only remembers buying the bottle of vodka. Larissa tells him that she won’t and can’t be with someone who acts like this and asks if he does this a lot. Mike promises it won’t happen again, but Larissa asks if he has an alcohol addiction. It clicks for Larissa that every time he said he had a migraine, he was drunk.

Larissa threatens to leave, but Mike promises that he can stop whenever he wants. Mike finally lets out all the fears and worries he’s had during their relationship. Larissa asks if Chris knew about the drinking, and Mike says he didn’t know about all of it. Larissa feels trapped and like she can’t trust her own judgement. She leaves Mike to take some time to think.

Mike hadn’t cleaned the pantry at the cabin out of peanuts again, so Chris does it. As he’s doing so, Mike comes to him and asks to show him his Christmas present for Larissa. He shows him some expensive Parisian macarons that he thought Larissa would like, but Chris points out that they’re made with almonds, to which Larissa is allergic. Chris offers to take Mike out shopping for another present, but Mike says that Larissa will suspect that he’s just now buying her present, and she’s already mad at him, so Chris goes out on his own.

Chris panics on the ride out to a shop but feels like he has to do something for Larissa because he knows Mike won’t. Chris realizes that he’s enabling Mike but knows he can’t stop because it would hurt Larissa. That night, he goes to bed early without telling anyone, feeling like he’s failing everyone.

Larissa has barely spoken to Mike since they argued, though she thinks his Christmas gift was thoughtful. They pretend like everything is fine around the others, and though Mike doesn’t drink, Larissa drinks heavily. She regrets going to the cabin, moving in with Mike, and driving home with Mike after the concert. Larissa thinks about everything that would happen if she left Mike, especially how she would have to be separate from Chris.

As Larissa is crying about this in the other room, Chris finds her, and she thinks about how things would be different if she had chosen him to drive her home. Larissa notices how little she knows Mike based on how much she knows Chris. Chris tries to talk to Larissa about a book he’s reading, but she stops him, saying that she’s punishing him. She asks him if he cleaned the snow off her car, but he can’t answer. They talk about attraction and how they can’t choose who to love.

Larissa leaves him and goes to her room, where Mike tells her that he needs to know whether or not she’s going to leave. Larissa tells him she’s not going to stay, and when Mike says he can change, she tells him to change for somebody else.

Chris, Mike, Xavier, and Jesse have been snowmobiling for two hours and head to a bar. Mike has been quiet since they left, and upon arriving, he finally admits that Larissa broke up with him. He doesn’t want to tell them why and immediately starts drinking. His three friends try to stop him from taking shots, but he won’t leave for another two hours. They’re kicked out because of Mike’s behavior.

Mike is still drunk when they get back to the cabin, and he shouts for Larissa. Chris finds Larissa and Heather and tries to get them to leave immediately, before Mike finds them. Chris has never seen Mike so sad as he begs Larissa to stay with him. He kisses her while she’s trying to push him away.

As soon as his friends manage to pull Mike off of Larissa, her lips start to tingle, and she asks Mike if he’s eaten nuts. Chris knows that Mike must have eaten the macarons he was going to give Larissa and feels even worse because he didn’t check to see if Larissa had a working EpiPen before they left, as he’s always done before. He hadn’t asked because it would have been weird with Heather in the car, but he still kept an EpiPen with him.

While Samantha, Becca, and Heather try to help Larissa, she starts going into anaphylaxis. Chris tells her that he’s going to give her the EpiPen, and doing so is when he touches her for the very first time. As soon as he’s done, Chris puts the EpiPen on the counter and then punches Mike in the face.