What's happening to me?

Last Friday I went to the Demi Lovato concert with my godsisters and close friends. We pre-gamed before going into the arena. When we got inside we had lots of beer so I was really tipsy. I don't do well when I mix beer and liquor. It gets me everytime. I got my cardigan dirty and I was wearing a top that was sleeveless. That night turned out to be pretty cold. After the concert, we went to karaoke and I ate and sang for a bit. I texted him when I was at the concert telling him I'm such a bother and crazy stuff I can't recall. Then before leaving karaoke I told him I didn't want to go home. So he suggested the fountain park and that's where I went. At first I wasn't cold. I was sitting on a bench swing buzzed and crying. I missed my Dad and I felt miserable. I think somewhere before that I asked hin to go with me but he was talking to a friend at IHOP. He texted me and asked if I had gone home yet and I told him where I was. He asked me if I was by myself and I told him I was. He replied and said "Be there in a few." I had so much on my mind that night I didn't realize he came. When he got there he started to talk to me and ask what's on my mind and stuff but I just told him nothing. We sat there for a couple hours. I was freezing without a sweater or a jacket. We just sat there and he tried to talk to me. I think because he can sense something wss wrong with me. Then eventually it got really cold. He asked me if I wanted to call it a night. So we were leaving and I was shivering walking up the stairs by the water fountains. He told me to stay away from the water and he kept waiting for me and looking back at me because I was so cold. Then when we got to the car he told me I should warm my car up. We stood outside for a few minutes and I was still shaking. He didn't offer me his jacket and I think I have an idea why. Also, I told him I wasn't cold to begin with so that's my fault. He told me he didn't want to keep me in the cold so we should head out. When I got home I texted him thanks and he sent me a question mark. So I called him instead of explaining through text. We ended up sleeping on the phone that night. The next day we went over to L's house to play games. We played Apples to Apples and Scattergories. I had so much fun. When games were over I went back to my old self and had a lot on my mind. When we were leaving I walked passed him and he asked me if I was going home or was I gonna stay out late again. I told him I'm not really sure yet. We all went home and I texted him to see if he was home. We texted for a bit and he told me that I should get some sleep soon and we said our good nights. Honestly, I'm happy where we are now. This is good enough for me. I'm not asking anyone to be in a relationship with me. I just want comfort and someone to care for once. I guess we're both damaged from our pasts so I understand what might be on his mind. What's happening to me? Why do I care so much? I don't want to get hurt again. Not anymore..