Should i get rid of him?

Since I was 13,he was 18. He went to the army but we both agreed that we'd wait until I was 18 to speak about a relationship and express our love but that we weren't going to stop seeing other people til then. He went to the army, so I waited for him, watched as his personality changed from trauma and heart break. Now I'm 18, he's a vet and we go to the same college.
He used to be so sweet to me, he told me he loved me, we stayed emotionally close through the war,heart break,you name it, but he'd seriously hurt my feelings sometimes, and when he did I was extremely submissive about it. He even convinced me that I was weak minded for crying over my fathers death. Now I'm different, I'm still sweet but I dont allow ANYONE to disrespect me in any way. He's was trying to have sex with me and I rejected him numerous times because I felt like he wasn't the man I originally fell in love with. He was becoming frustrated with me and when we were playing around he snapped and called me a 5yr old and told me to behave like a woman that I am, so I yelled at him back, defended myself and left him.....i still feel extremely attached to him.idk how to get over him, I think he's now talking to one of my friends and she's 17. He's never been violent with me, but i feel like he emotionally toys with me.he was my first love, someone I know I will always hold dear to my heart. I think I'm holding on to the version of him before Afghanistan. I'm just not sure what to do.