I have been with my wonderful boyfriend for nearly two years. I recently moved to another state with him and began a new job. I have been under a lot of stress at work and recently found out my Grandma has cancer. For New Year's Eve we went to his friend's house for a party. I did not know anyone there and was not looking forward to the evening at all, but went because I wanted to make him happy. I ended up drinking too much to make myself comfortable and blacked out after 130am. I do not know how much I had to drink or who I talked to. My boyfriend told me that he found me in an upstairs bathroom with another girl and accused me of kissing her. I am not bisexual and this really scares me because I don't know what happened. He said I cheated on him and this breaks my heart. I have huge bruises up and down my arms and I don't know where they are from. I am not trying to excuse any of my drinking - I know I drank too much and I rarely ever go out. I maybe drink once or twice a month and nothing ever got this bad. I don't know if it was the stress from my life or the fact I was uncomfortable at the party, but I drank too much and ended up throwing up all night and going home with the wrong shoes. I am grateful my boyfriend took care of me. He is truly a wonderful man and I would never want to jeopardize what I have with him. Still, I don't know what happened in the bathroom. I don't know who the girl was nor anything that took place. I have no idea what time this happened or when we left the party. I have resolved not to drink anymore - not that I am a big drinker in the first place, but I feel that drama is all too present when alcohol is involved. I don't know what to do. I apologized to him profusely and I know he is hurt, but I am scared because I don't know what happened. I just want to have this all just be a nightmare. He told me he was planning on proposing soon, but I ruined everything. I am so embarrassed. Any guidance would be appreciated.