When people say this they usually mean that the person saved them. Usually a girl says this to a guy who they fell in love with that had just saved their life in one way or another.
If a guy says that you are pretty it does not mean that he likes you. He could like you, or he could just be paying you a compliment.
It means he is the problem....not you
Dude he wants to do IT!!!!!
He likes you
nothing
"Can I have you?" means, "Can I have sex with you?".
MONEY!!
He likes you
it probably means he's too shy to ask you a really deep question. OR he just saved his butt from asking a REALLY stupid question.
It implies that the guy thinks you are gay.
That that girl thinks that that guy is handsome.