Jack also force himself on the duke sexually though, if you ignore that part and only blame the duke what is the point? and by the way you can't really say blackmail is way better then rape or the opposite - THEY BOTH HORRIBLE! you can't really try to compare horrible ways to threaten someone to do what you want - it just dumb at this point if you even try ╮( ̄▽ ̄)╭
Blackmail and Rape both suck and the whole rape culture in yaoi's should stop altogether but both Jace and the Duke are in the wrong. I'm sorry to say this and mean so offense but Jace started it all and they both shouldn't have done what they were doing and the Duke is definitely in the very wrong as he keeps hurting Jace but if Jace wanted, he could leave and he doesn't so I guess...in some ways, it's fine but not. XD The whole thing is fucked and they really need to clear their misunderstandings.
Exactly and I agree that the Duke is doing really bad right now but don't forget that Jace instigated all of this. If he just hadn't gone onto the Duke in the first place and stuck to teaching his brother, none of this would've happened. And Jace could leave if he wanted to and that ain't victim blaming.
The only things he did wrong was come on to him twice when under the effects of strong medicine and alcohol. He believed he was dreaming and tried to "blackmail" the duke into sleeping with him and forcefully kissed him. The duke has raped Jace repeatedly and yes Jace is an abuse victim. As most abuse victims, he stays because he is dependent on the duke and when he said he was leaving, he was then raped. Do not blame abuse victims for not leaving.

ok everyone is saying duke raped jace ...their first sex was like that too jace forced himself on duke just because he is a bottom doesn't mean he didn't force things...
don't kill me i just shared my opinion