Knowing more about your own motives and always following your feelings often backfires (even hurts). I hope she can vaguely understand my concern and give others the feeling that you are not handsome enough. If you feel ambiguous, others may be annoyed.
If you really can't let go, analyze how you broke up. If you want to start over, it's easier. Don't hide in the corner and touch yourself. Don't wait until she becomes someone else's bride to regret it;
"Flowers can be folded straight, don't wait until there are no flowers."