My GF(14 F) cheated, but I(14 M) dont care

My gf ( 15 F) of 6 months cheated on me (15 M), but somehow i don't really care. I have broken up with her and this is the first time someone cheated on me. Before I had found out she really was important to me and I thought if we broke up I would recover pretty hard yet after idc about it that much. Her friends told me about it and they are pretty much on my side and I have hung out with them more than they hung out with her since the breakup (pretty much we are in the same big friend group of about 20-30 people, but most of her friends didn't like me that much). I still think about here but not in a sad way, I think why idc is maybe beacuse i have the mentality such that I care but if you are going to be a dumbass and act like a h0e i won't. Constantly I have such a weird feeling but idk what it is.

Has anybody experienced something similar? All advice is helpfull.