Reality check
Before I get any backlash let me tell you something honestly. You probably ask yourself "why I was dumped?" The answer is simple. You were not good enough for this person. For whatever reason. Money, looks, character was shit, too anxious, low self esteem, other issues, etc. Your ex thought they can do better than you. There's plenty of fish in the sea. That's why you got dumped. It's the real answer. Not the bullshit you are telling yourself to feel better.