I am 29/F and my boyfriend is 23/M. We’ve been dating for 3 months, talking for 8. Recently in an argument he confessed that he replied to a girls Instagram story “cute” when he was drunk, I don’t know if I leave him. It’s not full cheating but it’s far beyond not ok. We’re in love and started to plan a future together so it’s a hard choice. I don’t want to be stupid and get hurt again but also am struggling to leave for good. He’s young and immature but I’m wondering if this is something we can work through. How can I approach this so I’m not being stupid or too quick to leave?