My girlfriend and I were sitting in the car when she looked at her phone. I saw an Instagram message with 3 hearts from a guy we both know (he reacted to her story), now the guy is a few years younger then us and kind of a rich kid. The message itself didn't bother me, but the way she lied to my face and acted like she didn't see that message bothered me. How do I proceed, do I confront her about what bothered me or do I just let it slide. I know all about abundance mentality but I'm just curious where this is leading to and how I can solve this without coming off as beta. I would say my girlfriend is hot and kinda addicted to attention (red flag I know) but what am I supposed to make of this.