Secondary school dynamics in 3rd year

So for context I am a (22F) and i took a gap year after i finished my A Levels so that i could have the time to work out what I really wanted. I joined university knowing that the people around me would be a year younger than me but i didn’t think there would be SUCH high school dynamics. ANYWAYS im friends with these girls who are 20 (summer 2004 babies im autumn 2002) one of them often makes immature remarks about hating all men (despite not having any real relationships with them ), and projects onto me for expressing my desire for marriage and having children in the near future. She also described a recent interaction with somebody she didn’t like, he’s supposed to be a bad person in everyone’s books but idk what he’s done and don’t care to know because it can’t be that terrible, because usually when an individual does something heinous at my university everyone in our year finds out pretty much. ANYWAYS this man’s father left him as a child and when he came up to her table at the library (mind you he was speaking to the person next to her and didn’t address her once), she said “i just love having a father figure in my life “ knowing that he was there and KNOWING he doesn’t have a father, when she told me this with such glee i was honestly shocked that anyone could be this childish and mean and i’m honestly not sure if i should end the friendship because she and my other friend are also ganging up on me for passing out on a night out. what should i do?? i apologise if nothing makes sense ive just been writing an assignment late at night.