Help!!!!

Nami
Okay so I've been hooking up with this guy for a long time on and off and he always seems to be interested around me but once were around friends he acts like he doesn't even know me. We've been doing this for a while now, almost a year, and I keep telling myself that he will realize that he wants to be with me but it doesn't seem like it's happening. What should I do???? He's actually a really great guy but always has to make sure that no one knows that we are hooking up.