I feel like JJ is refusing to communicate and being petty towards Leo because he had enough of feeling emotionally neglected. Maybe he feels that no matter what he says, it won't change anything, or he thinks Leo won't care about it even though, in reality, Leo does.
But he tried, Leo's friends and family warned him but Leo was too self centered to listen.
And by asking JJ to be his fuck buddy instead of asking to get back he just confirmed to JJ that Leo just doesn't care enough.
We all know, Leo does care but caring but not showing is not enough.
Actions speaks louder.
now we gotta remember we don’t know how long JJ has been suffering and feeling like a s*x toy throughout the relationship. Of course he’s holding a grudge, his bf was neglecting him emotionally for a long long time and didn’t see an issue bc of his ego. And now that JJ finally choses himself for once, this ex-bf asks to use his body again. Yes, JJ should’ve been more clear in communicating but u don’t need very much emotional intelligence to understand that being lovers involves affection too Leo doesn’t even realize/regret anything, he even said “should’ve hooked up with him sooner”