She never actually considered their feelings seriously enough to sit down and have a real conversation about her needs with them. There was no "hey, I like you a lot, but I'm not interested in a monogamous relationship." If she wants to sleep with 4 guys that's whatever, but she owes them some degree of transparency instead of just disappearing when they are vulnerable after sex lol.

This is really kinda ass like i knew what I was getting into by the title but she is really a bitch. I hoped that its was a harem where they can stand eachother but she is just going from guy to guy and after using them for sex, she doesn't want to take relationship seriously and runs to other dude. I actually hope she dies in the end