Hajoon probably does (or will like her), but what's with Suzy? Just because the guy rejected her doesn't mean he has to like another girl. He can just not be into her. I always find those types of girls who think every guy should want them really annoying.
Also her friend is even more ridiculous. Bullying another girl just because her friend is a little annoyed by her? Not to mention it's not because of anything the MC did but for simply talking to the guy that Suzy chose to break up with! I've heard of loyal friends but that's just weird level of dedication.