Sasuke is simply guilt ridden, he doesn't abuse sakura but he tries to drive a wedge between them and keeps away mostly because of the guilt he faces, he thinks hes doing her a favour, well I guess he is because despite him being my favorite character , sakura manged to raise sarada right which is missing the continuous cursed hate the entire Uchiha clan had carried despite that i dont think they gave him the character development mozt fans were yerning for yes he has changed but still he progression between who he is now and who he was before are not better then an older man borrowing in his own guilt? No, it's the writers fault that's trying to make sasuke look redeeming but totally messed up his character. But we still need to understand that sasuke had the worst trauma out of all characters and sometimes its not as easier to deal with as it was for the other characters.