I meet a hot milf on UK AFFAIR a few months ago.

I am kind of surprised by this… But I (53M) started dating this milf for a few weeks, and when we were changing positions and she was going to go on top of me she said “I don’t think this is a very good position due to your penis format. We kept having sex but later talked to her and she said it was mainly the girth and length. I was kind of sad by this, it’s one of those sentences no guy ever wants to hear. But she was chill about it and said that we just have to get creative.

Few days later and we were making out and initiating sex, and she asks why I was so sad about what she said. And then asked if my exes didn’t say the same about my penis size.. I answered “no”, which is the truth. She giggled and asked if that was really the case.. This irony and doubt in her tone really hurt me even more.

I’ve been with plenty of girls, some more casual and some more serious and no one ever mentioned anything about my size being too small. I can usually give orgasms, this current girl herself had an orgasm from penetration after this incident.

Now, I know I’m not on the bigger side definitely but I consider myself average. For reference my size is: 5.9″/14.7cm (bone pressed) length and 5.1″/13cm girth circumference .

I can’t help but feel she was a bit to cold when mentioning this.. On the second time we have sex. Am I overreacting or being to sensitive?
It’s starting to get me a bit anxious before having sex with her, and I’m scared I will always have a feeling that I’ll never be able to fully please her. I spoke to her about it but she didn’t make a big deal out of it.
How should I approach this?

TLDR: Girl said my penis is too small and was surprised I didn’t hear it from my ex’s.

Edit: I had even made her a nice dinner and even dessert that day. Felt really bad after this.