I cheated on my husband and i want to die.

Good day house, I just did the stupidest thing of my life and I don't know what to do or who to turn to. I cant even think straight and I feel so completely alone and shattered. I cheated on my husband last night and I don't know how to tell him or what to tell him or even if i should tell him. if i tell him the truth he wont believe me. but i have never lied to him before. i feel sick inside. it isn't a long story because it wasn't planned and i never thought I would do something like this even drunk. Last night, I went to out with some girlfriends. we were going to go sing karaoke but one of my friends said we should stop at this new guy she was dating's house because he had invited her to a small house party. The guy was nice and the party really small and relaxed. We all told my friend that her new boyfriend was really hot and he was. He invited us to have a few drinks and so we did. and we had some shots and that is the last i remember. i am not lying i have never been blackout drunk, it is like today my mind is trying really hard to remember but i can only pull up bits and pieces that make no sense and seem more like a dream. I woke up feeling really sick and really needing a pee and saw i was in a strange room. I started shaking and crying and got my tights on but couldn't find my panties anywhere. i really didn't look. i didnt see anyone and i wanted to just get home. the thing was i wasn't even in the same house i was in an apartment. my coat was on the floor by the door and i grabbed it and ran. my wallet and cellphone were in the pocket so i called a cab when i got to the street.  I felt disgusted with myself. my husband wasn't home when i got there. I dont know what my friends did or what they know. no one has called me and i am scared to ask them. i dont know who the guy was and i don't know what happened. i just know some part of me thought it was okay to go home with a complete stranger. i keep trying to remember but i can't. What should I do? I am sure I made love with somebody because i hurt and there are a few bruises on my arms like from a hand. i cheated on my husband and i want to die.