My crush

So I have a crush on this guy and he has one on me to what should I do he got a huge concuson and he was dating this girl who was A JERK to him and the first thing he does as soon as he can get his phone be texts me and not his gf and he call me sugar now and has broken up with his old gf and often stairs at me all the time it's anoying after a while advice aneyone and he's my best friend so I spend a lot of time with him what should I do