Dumped after years together - how did you move one?

First serious relationship, we were together for 10 years from 18 to 28. Not married, nonkids but we had started talking about that topic.

She dumped me two months ago and I still can't seem to get over her.

I've done all the cliches, going daily to the gym, tried online dating, tried irl dating but honestly I'm not interested in other women, not romantically and not lustfully either.