there are many reasons why and recently iv'e had the same problem but ive come to realize that it is because he is afraid to lose you. he thinks that you might leave him for someone else better than him in general <3
is his kissing other girls or other guys?
no, Because your the boyfriend and he is an ex only.
he is feeling insecure and needs you to validate your feelings for him
if he loves her he would not care.
because you yourself are insecure
You either have low self-esteem or he has cheated on you and you don't trust him.
Probably insecurity, or he is telling you that he chose you and only you out of those girls...
It means he's insecure.
Because maybe he's insecure and needs to make sure that you dont still have feelings for your ex
It means he's probably insecure. Positive reinforcement helps to cure this, reward him when he's acting nice.
you're either insecure about your relationship or you suspect something and just want the evidence to bust him
It likely just means that he is wondering why you were attracted to him in the first place... maybe he's feeling insecure.