Responses
here are a few I have read, but they're pretty popular (I think?) so u might have read them already. but just in case u haven't, u should check them out
he+he
dine with a vampire (only the first few chapters)
10 years where I have loved you the most (abusive, and sad)
kiss me, liar (it's new so there isn't a lot of chapters yet)
mob for jack (there's a lot of rape in here, so it might not be for everyone)
egoism (its mostly just conflict, not abusive)
killing stalking (very abusive)
obey me (very abusive)
love bite (cheating)
I am in need of some good mangas that have abusive/unhealthy relationships :)