Has anyone here just quit romantic relationships? Like ended one if you're in one and then just avoided pursuing any more?

This probably sounds bad, but I feel like I will never be happy with someone else. I feel like I will always care more, always love more, always make more effort than the other person. I'm just so tired of the constant anxiety, fear and paranoia. Wondering what they're doing behind my back, where they're at, who they're talking to, obsessively checking social media, etc. I'm tired of feeling like I give so much and not getting what I need in return, I'm tired of never having enough reassurance or attention. I'm tired of not being validated.

Relationships always start out so promising and so full of hope, but then the layers peel away and it goes down the same damn road. At this point, I feel like just cutting out all romantic relationships. I'm not sure it's worth it anymore. My mental and physical health are compromised from the constant anxiety. Has anyone else had any luck with this?