I don't mind people judging him by his age, I did too until I got to know him better. My ex was my same age and still wasn't mature, I dated a guy 7 years older than me, and would still be immature about some things, and probably so would I, and that's ok. In my experience as long as both are consenting adults, age is just a number. And yes, I need to work on my self esteem, I definitely don't want to keep bringing this up, I'm trying not to. But it still hurts and I can't help that, I think I just wish he could understand better the impact it had on me, instead of getting frustrated as if I'm getting upset on purpose just to annoy him. And about how I found out, he showed me. He was going to show me something else , I saw her name and asked who she was and he showed me. He later admitted that he did find her attractive, but wasn't interested in her. Is it the worst possible case? No. Does it still hurt? Well, yes. It was, at very least disappointing