see if boy/girl looks at you in a strange way
ask him
bum her and if she likes it u know
If you are friends and they maintain that relationship.
well if your ex still talks to u and u hate him then say that u have a boyfriend.
if he is always around you and jokes around
Ex, do you still like me
Try to get You jealousTry to get You jealousTry to get You jealous
Honestly, it all depends on the guy you dated.
You don't unless you just simply talk with them concerning this if it is what you want.
they will find another date which means they are pretending they hate you.
Talk to your boyfriend. If he likes her more than you, set him free to be with her. But if he still has eyes for you, ask him why he still likes his ex.
Check if he still keeps her old presents