HELP!

What does it mean when the guy you are dating starts avoiding you and won't even let you talk to him? Please help!

it means he doesnt know what he is missing out on., and u deserve someone better, who appreciates you.

It usually means he has lost intrest in you. Maybe the intrest he lost was found in somone else. This is not always true but happens often. Just ask him for yourself and see what he says.