I dont know if i would count this cheating... help?

So i went to this party and i had way to much to drink. My boyfriend was gunna come but he decided not to. so at this party a bunch of random guys from a different school came they were drunk also. They came over to me and started saying stuff like show me your **** and what not i said no over and over again. than this one guy was like kiss me and i said no i have a boyfriend so some guy comes behind me and forces my head into the other guys we hit lips but thats it no tongue. I pushed away and started to cryy they kept calling me a loser and pussy for not doing anything with them. and they said i would regret not makingout with them. So after i left they decided to go tell my boyfriends friends that i had madeout with three of them and one of them fingered me. So of course all of them told my boyfriend that before i could get to him about what really happened. my boyfriend doesn't believe me and he believes what his friends told him which isnt even true. My boyfriend won't even talk to me or reply to my texts. I decided to leave him alone. but to top it all off he didnt even tell me and was breaking up with me he did it on facebooook. what an ***! All of his friends and him are being so mean to me. All i want is my boyfriend to trust me and believe me..