Did you ever have an ex that pretty much killed your confidence?

Towards the end of my marriage with my ex , she started criticizing me , belittling me, comparing me , made me feel like I was no longer good enough , after I had my gall bladder removed , I put on a little bit of weight , and she would knock me down with remarks making me feel like I wasn’t good looking anymore , so I threw in the towel on her disrespectful ass , but now that I am back on the dating world , I don’t feel as confident as I used to to be , i become my own worst enemy to the point I don’t really put myself out there anymore , I don’t feel as good as I once was , I know my ex is a selfish POS person , but how do I rebuild confidence in myself? At times I feel like I need a girl to come sweep me off of my feet for once. Have you ever experienced this with an ex before , that pretty much played a big part on killing your confidence?
Did you ever have an ex that pretty much killed your confidence?
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