I need help me and the guy that i have been kinda seeing are fighting and now hes all mad at me?

ok so me and this guy have been kinda seeing each other by like holding hands and other things like that and its been about 6 mouths and i see him almost every weekend and we sleep over at our friends house (we're both 15) and well yeah now my problem is he was acting like he wanted to be with me SO much this weekend. so i went to our friends house and so did he and we were normal at night held my hand and stuff but then he left because he had a hockey game to go to . he came back and he stayed over the next day he was wearing his new sweeter and playing a game . i was just doodling on a piece of paper and then the pen exploded and it was on the side of my hand 10 minutes later i got up and walked by him and had forgot i had the pen on my hand and went to go kiddingly slap him and right as my hand started to touch his shoulder i remembered that i had the red ink on my hand still. right away when he looked at it he called me a ***** and the wiped the Controller at my stomach . he told me to go **** myself and everything he ended up calling someone to comeget him and left and for the 20 minutes before he left didnt say a word to me or our friend so yeah i dont no what to do now and i honestly do feel bad about puting it on his sweeter and i also apolgized more then once and he still wont talk to me so now what ? . but i dont think it was right that he did what he did ... am i crazy or did he take it tooo far i need help what do i do