Jules doesn't take him back, but that would be really crazy/awful. But I think she's still something of a mess, from the set-back he put her through. And I don't think he really wants her back - I don't think he really wants a relationship.
And I'm not saying such a person can't be written about, and him being a shit wasn't a deal-breaker for me. I just didn't find the play came completely together by the end, while I know others feel differently.
What consequences did he face? The loss of a nothing job? I don't remember now what the final situation is with him and his child. But, as he's ready to hook up again, I didn't think he was really paying a price for anything (and again, not a deal-breaker). (I didn't read Brantley's review.)