Am I the problem or am I just meeting the wrong girls?

I get some people just don't click, but I've only met one girl in my entire life who I could be myself around. She was the most genuine person I ever met and she's the only one who got to see who I really am.

But literally every other girl I've dated put my personality in a box. I just feel trapped, and I can't seem to come out of my shell, no matter how long we know eachother.

I know it sounds like a "me" problem on the surface, but it seems like all these girls are putting on an act around me. Like they're trying to be too cool or something. I can tell they're not being genuine at all, which in turn makes it impossible to open up to them.

So why are girls like this around me, and is there something wrong with me that makes them feel like they have to act a certain way? This makes dating extremely difficult
Updates
10 mo
Thanks for all the answers. I guess I got some work to do on myself
Am I the problem or am I just meeting the wrong girls?
Post Opinion