How do I become less insecure of my ex’s past?

Anonymous

Hi. My boyfriend has had a past where he has had flings, and long term relationships. To be honest, some of the girls he was with make me insecure because they are super pretty and he seemed to have liked them a lot but due to circumstances they are not together. The thing is when I bring up my insecurities to him, he gets annoyed because he doesn’t like me being insecure about those things or answering questions about it. I am someone who has not had a past before since he is my first boyfriend. He has done a lot of crazy things too in the past (lived the true American college life I would say) but he has settled down now and I’m the shy and introverted one who has never done any of these things. I keep feeling bad that I have not done anything out of my comfort zone like him before and never dated other guys too. How do I stop become insecure of his past relationships and flings and the things he has done in the past?

Updates
7 mo
Sorry I meant to say boyfriend not ex
How do I become less insecure of my ex’s past?
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