No, it doesn't mean that you're insecure it just means, that your different from him. Although you might not be as comfortable as he is being more 'out there' he might be able to change you and bring you outta the shell, a little bit.
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
earning money driving playing sport showing affection cooking
earning money driving cooking showing affection playing sports
She may be comfortable about who she is, but maybe not around somebody else in that kind of a relationship. Its different so that may cause her to be insecure for a while and get some getting used to before she's back to her old self.
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