I (M27) found out my girlfriend (F29) had been on many dates before me, and I’m struggling to process it

Hey everyone, I’ve been dating my girlfriend for about 2 years now. She’s a few years older than me and has always been pretty open about her past relationships. She told me she had been in 3 serious relationships before meeting me, and I knew she had gone on some dates after her last breakup.

Recently, though, I found out that she had actually been on more than 15 dates between her last relationship and meeting me. I also came across a few close (not intimate, but friendly/comfortable) photos of her with different guys from that time.

I’m honestly not sure how to feel. On one hand, I know people date around before finding the right person, and she’s always been upfront with me. But on the other hand, I can’t help feeling uncomfortable and bothered by the number of guys and the closeness in those photos.

Is this something normal that I just need to come to terms with, or am I missing something deeper here? I really care about her, but this has been weighing on me a lot lately.

Would love some honest advice or perspective.