me(M17) and my GF(F18) have been together for 5 months at this point and knew of each other back in primary school but only started talking and stuff just before we started dating.

basically idk if I should breakup with her as I feel I'm missing out sometimes getting with other girls for instance. She's borderline unicorn, really smart, only ever had one BF (me), doesn't give any guys attention even if really hot, and very shes very attractive but thinks i'm better looking. She doesn't show a single sign of hypergamy as we've both gone on maybe one or two dates where she paid for herself every time.

I'm always making sure i get my red pills in and think MGTOW is a great way of life but idk if it can be getting in the way of how i'm going about this relationship. One one side i think this girl isn't these entitled gold diggers and on the other idk if i'm wasting my young years staying committed and what not if i feel all relationships end at some point and i'm going to be attracted to other people possibly.

TL;DR should i stay with loyal smart and attractive gf or brake up while things are going great or brake up and do my own thing and hookup up with girls but don't want to cheat on gf at all.