It doesn't 'click' with anyone

I'm having a hard time going on dates because I somehow don't start developing feelings even after we've seen a few times. It just doesn't click with anyone, and I'm equally sorry for myself as well as the people I go on dates with, only to realize it won't work.

I had a shattering heartbreak 3 years ago and I've been processing it in therapy, talked to friends about it and widened my social circles by joining new hobbies. There's been (and still is) mental heavy lifting to do and I think I'm doing it. I don't think I'm aro/ace/demi, just used to being single for the long term.

I feel a bit stuck and wonder what's wrong with me.