K so update on my situation

So my friends have 2 groups. So the groups have been fighting over something really stupid. There has always been this one girl in the other group that has bullied me. But now the other girls have started too. One of my closest friends (let’s call her x) started to say insults to me in the halls. Now my best friend in my group is siding with x. She wants me to just forget the whole thing. Should I just forgive x (even though she never apologized)?