I think Haley needs some attention to improve her presence, it seems people aren't much a fan of hers due to how she's been done so far, her introduction being, alright, at best, or like when the MC, Nikki and herself have a threesome and she doesn't want to talk about it afterwards, it might it sound as though she doesn't really have any interest in the MC which is strange considering they're apparently Boyfriend and Girlfriend but, OK I guess.
If she gets some more upbeat content with her and more opportunities to show she's actually a worthwhile addition, it'd be pretty cool, I personally don't want to see her get written off or anything, she seems like a decent girl in my opinion, just lacking what she needs to make everyone see that.