My best guy friend violated me last week?

Last wednesday me and a few friends were over my house and when they left it was just me and my friend erik. We were watching t.v. and he kept scooting closer to me and then when i was about to get up and he pulled me down and started touching my boobs. I brushed it off and told him to quit it. For some reason he seemed upset about that and shoved me and I fell off of the couch. He straddled me and put his hands under my shirt and felt me up. I started screaming and trying to fight him off but he was too strong. Eventually he unbuttoned my pants and started touching my part in my underwear and all this wet stuff came out of me and I'm so embarrassed because it felt soooo good yet so horrible at the same time. Then he left me crying there on the floor. At school he tried to act normal but everytime I saw him I burst out crying and ran away. Should I forgive him? I don't know what to do. Btw I'm 13 and he's 14 and we've gone out before and he told me he still has feelings for me but i don't think this is how you show it. I haven't told anyone except for his sister and she says he's really sorry he lost control but he says he couldn't resist.