Peter is (finally, sort of) trying to own the situation he got himself into with Tara and Amina by apologizing to Tara. It’s clear he was jealous of her date at Rich’s party last week, but he’s also got a habit of running from his problems. Seeing Tara will kill two birds with one stone. When he sees her he jokes about her Lil Kim-inspired outfit, and then he gets serious, acknowledging that he ran from Tara and owes it to her to apologize and make things right. “In my mind I always thought I’d have you no matter what,” he tells her.
“I love you and those boys so much but that’s the bed I made, I have to lie in it.” Peter is genuinely hurt by what he’s done to himself, but it doesn’t change the fact that he’s messed his family up. He did it. And he has to watch them walk away.