It was poorly done by the author really. That chapter was giving - JJ serves the same courtesy as what Leo gave him. Leo before would make them have sex almost anywhere - like in a storage room after winning. Given JJ's personality, he wouldn't have wanted that. He most likely refused but Leo insisted. So come ch 13, JJ was just doing the same. BUT it should have been just a blowjob. Nothing more to make it even with ch 1 but the author went up to a 100 with ch 14 - which was unwarranted.
Then, again, we've never actually seen Leo treat JJ like that in any chapter (or if I'm missing, I'm genuinely asking, point me the chapter where Leo is being sexually aggressive towards JJ). I get your interpretation, but honestly doesn't change my mind about JJ.
The aggression is there because JJ is upset because he is again treated as a doormat and Leo is expecting him to just go along. But it's not the aggression that was being paralleled there, it's Leo doing whatever he wants, whenever he wants.
When I started reading I was a 100% on JJ's side and hoping for Leo to realize his wrongs and improve.
But ch.13 changed my perspective idk likeee call me dramatic, I'm sorry, but getting violent on ur ex-partner (u can read the chapter: JJ violently grabbing Leo's hair and forcing his dick in his mouth) is when I'm like, bitch wtf is wrong with you.
So yeah, idk I now rather JJ suffer cuz even if Leo was a shitty brat in the relationship he doesn't deserve that lol. In general, like, no, being obtuse, dumb and immature doesn't mean he deserves that kind of treatment. But who knows, maybe I'm exaggerating.
I'll keep reading because I like drama tho and this is fiction anyway; just saying I don't like JJ anymore because of that.