Comment by PorkBellyMo on Driver's High - Chapter 18

@PorkBellyMo what you mentioned are only superficial aspects. If you've been in a relationship, there is more to it than living together or loving each other. It's like continuously dancing together and each one doing their part of the dance. There is no point in dancing together if you both keep stepping on each other's toes and hurting each other.

@PorkBellyMo I think it has more to do with Leo lack of interest in their relationship. I believe Leo never meant any harm and didnt mean to hurt JJ either, I think he didnt even realized how much he was hurting JJ in the first place, but its like that flashback Leo had, when JJ asked him for them to spend some time together, Leo said he didnt have time for that but in the next second he was going out drinking with his friends. JJ problably felt lonely and left aside in Leo's list of priorities.
For me, the main problem here is that JJ was never honest with Leo about how he was feeling (again, communication is important) and Leo thought everything was fine the way it was since JJ never complained. In a relationship, you need to give your partner some attention and affection, right? It's not only about s*ex. Sadly, Leo lost sigh of that along the way.
Even if they get back together, I still think things might be bad if JJ doesnt learn how to TALK about his feelings. Just like everyone else, Leo can't read minds.