I'm confident at times but I will always compare myself to more attractive men and feel not worthy for my gf. How do I stop the comparisons? There's always gonna be someone better so its an eternal loop.

It just feels so terrible when you know theres a better looking dude out there and maybe even her ex or past lover and you can't offer anything in that department. I hate comparing her past lovers and start obsessing over their looks and can't see why she would be with me after all that time with them.