SOS- needing advice!

Okay- a little backstory.

I’m 25, and have been dating my boyfriend for 5 months. But were both our first healthy relationship so we’re both in the same boat of learning and growing together. I’m also very sensitive.

About a month ago we had our first fight and it wasn’t very pretty. Basically he was comparing me to his ex girlfriends (meaning he thinks I’d end up hurting him one day) and I told him it makes me feel isolated and not good enough. I also do go through my overthinking phases but I have learned to snap out of that. And I know I’ve got a good guy and he wouldn’t be like my exes. He has a hard time “snapping out of it” if you want to call it that. He apologized so many times and told me he’s not going to do that anymore.

Today he compared a situation he and I have, with a similar situation he had with an ex and it hurt my feelings. Am I being too sensitive? I haven’t said anything because why say something if I’m over reacting. Obviously he didn’t mean any harm by it but of course I’m insecure about things now after our fight.