Boyfriend gets drunk instead of supporting me

I don’t even know how to start this. I’m a senior in college and basically I’m in the program where we do this project for two years about creating a charity for children for my major. So last night there was this entire event which the board was going to prize the student with the “best” charity and give a big donation to it. This was something I have been working so hard on for the past two years and something I was really passionate about. The biggest thing to happen to me. The event started at 8:30 and was black tie and I had a plus one. My boyfriend plays hockey for my college and his game was going to end at 7:30. So it made sense just to meet there. I get all dressed up and probably look the best I have ever have.The event starts and my boyfriend still hadn’t made it. I didn’t really worry because the game may have ended late so he was probs still at our house showering and stuff. I’m sitting at a big circle table with a bunch of people hoping to get this donation with their dates, and me alone. At around 9:30 when the award is about to be given I call my bf worrying because I think he may have had been in an accident or something happened, but he didn’t answer. I’m literally on my phone texting his friends and him about where he is while they present who gets the award. Who happens to be me. The girl next to me had to nudge me because I was too busy wondering where my bf was. I get my award and say some words and leave because I was worried sick about where he could be. I leave early from the event and don’t even celebrate with everyone and head to our apartment. When I get to our apartment he’s not there and then I get a text from one of my friends saying check Alex’s snap (bfs hockey teammate). I look at it and see that it’s my boyfriend at a club drinking and dancing. I call my bf nothing happens so I get undressed and cry myself to sleep. He comes in around 3am and wakes me up when he falls into our bed bed. I fake asleep for about two minutes because I didn’t know what to say. But then he spooned me and I couldn’t take it. I unwrap his arms off my stomach and the one on my boob and get out of the bed. He then follows me out the door calling my name and asking what’s wrong. What’s wrong? I just couldn’t believe it. I open the door to our guest room however he pulls arm and basically is hugging me and keeping me in place. I told him he smelled like a liquor cabinet and I asked him what was the date last night (it’s now morning). He took out his phone which I saw had no notifications on his screen which meant he saw all my texts and calls. He told me the date and I asked him what was on this date that was really important. It took him a minute but when he realized what happened last night, I saw it in his face. I’m start crying and push him off of me and ran to our guest room as fast as I could. When I did get there, all I heard was my name being called, him saying how sorry he is, and to let him through the door. I told him to go to sleep and leave me alone. I went to bed and somehow fell asleep. I had work at 7am and when I woke up I found my boyfriend sleeping on the floor outside my door in a little ball. I went through my job which is a babysitting and throughout the whole nine hours he was blowing up my phone with calls and texts. Again saying how sorry he was and to come home so we can talk. I leave work at around four, but I didn’t want to go home yet. So I got myself dinner and went to a room in one of the dining halls to do some school work. By the time I got back it was 10:30pm and I finally went back to our apartment. Then when I got to the apartment, shit happened. Right when I walked in he began telling me how sorry he was and that he would make it up to me the next time. I told him that there is no next time, this literally was the only time he needed to be there for me. He then tells me his team won and right after they won everyone started drinking. Making him be drunk and forget about this event. I asked him why he ignored my texts and calls because I saw last night he had no notifications. He said that he didn’t see them due to him being wasted and the only reason why there was no notifications was he opened his phone to call an Uber. Then I basically told him how much it hurts me that he doesn’t support me or respect me. That he knew about this event for a long ass time and right after the excitement of winning, he should of thought of me and not shots of alcohol. I don’t even know what else was said. I was crying at the end of it and right after I passed out on the couch. In the middle of the night I woke up and saw that my bf had put a blanket on me and filled up my water bottle. But here’s the thing. This was the only night I needed support from him, the only night. I go to every home hockey game of his because he told me it made him feel loved and special, so I made sure I did that for him because I love him. But he can’t show up to one night of mine, which I told him numerous times about. Especially the days prior to it. Everyone’s boyfriend or at least one friend was there for them and I had nobody and I’m the one who won. I don’t really have a relationship with my parents, so I don’t have that much support in my life. I really don’t know what to do. I know he is sorry but I don’t know if I can forgive him.