Sex Tips/hurt feelings ?

I was trying to get a sense of what my bf is into and what the best sex he had had was, so I asked him. I wasn’t looking to get jealous or shit like that, he’s just more experienced than I am so I was also kind of trying to figure out if there’s something new I can do. He responded with “I’m not really sure how to describe it because it was a long time ago, but I can tell you what she looked like”

It felt like this was a dig at me but I don’t think he meant it to be? I think it was a “I genuinely don’t remember so here’s the one piece I can offer” but it’s been bugging me since he said it

Should I be bothered by this? Should I talk about it ?

I’m usually pretty chill I don’t care abt hearing abt his previous experiences, but the looks thing kinda hurt.