My ex of 18 months
He was very selfish stingy and emotionally unavailable. We argued about this and he dumped me. Blocked me everywhere.
At first I felt like I wouldn't be able to breathe. I felt humiliated and like nothing. But then once my mindset changed and I started to think how much better I deserved I was amazed how much I didn't miss him and didn't care less he wasn't texting and calling
Honestly anyone who is with someone they are doubting or treats them less than absolute gold change your mindset - they aren't good enough and not being with them is giving you chance to be yourself again