He has realised that you are a boring person
if he acts like he likes you dont do anything unless you feel the same way start dating with him and get married.
If he acts like he likes you, and doesn't admit it, it's probably just denial. They just dont want you knowing that they like you. I know this guy that acts like he likes me, but totally denys it.
if he acts like he doesn't
if a guy acts like he likes you but only when his friends are gone then that means he is embarrassed and you can probably do better.
maybe
communication!!
He likes you but wants to know if you like him too.
well if he comes around you and acts crazy or acts like he doesnt know you those are sometimes signs that he likes you but you should just ask him out if you like him :)
Ask him if he likes you yourself.
Leave him, he's apparently in to someone else.
then most likely it is just a little crush, and she wont break up with the guy for it
Because girls are idiots!