please help me? no one is there for me :(?

[RiRi]

i messed up a lot and now i regret what i did he used to stare A LOT like stand in the middle of college and stare. in the summer i traveled and forgot about him but once college is back i see him almost every day i try to avoid him but i really cant yesterday he saw me walkinng we made eye contact and then i think his friend told him to go somewhere he turned his back and walked away while he walked away he turned his face looking for me he thought that i wasnt looking at him but we both caught each other and i turned my face.. I REALLY MISS HIM!! and i think im not over him.. what do i do? he ignored my text one week ago.. but he followed my cousin on twitter (he doesnt know her. but he knows that shes my cousin) and he became close friends with my cousin in college he is a guy plus he is trying to make me jealous by posting pics with a girl i know that girl is helping him to make me jealous!! i really donno what to do? im hurt so much.. at least we can be friends i just dont want him completely outta my life. can someone please tell me what to do?