what do you hate in manhwas/manhuas/webtoons, etc?

I hate when the MC is weak like I'm talking actually pathetic to the point they let people run over them, can't even stick up for themselves, or have the side characters do all of the work for them in fights. It's infuriating in a way..

There was this one manhwa I've read a long time ago and this woman was dating a duke I think and the woman was so in love with him that she let this guy use her and run over her like it was game yet she did nothing because she 'loves' him. That really made my blood boil LOL.