he took my first kiss and left. please help!!

A few weeks ago I meet a guy. He gave me his number. We meet two days later. He kissed me and told me that he wanted to be my boyfriend. We had a date planned and he cancelled on me the day before. He said sorry and we met again later in the week. I was scared  that maybe he cheating on me. So I asked and he said no. Then on Thursday I went to a party for a friends birthday and he there with another girl. They kissing and holding hands. One of my friends got mad at him. And he just acted like he didn't know who I was. He was my first real boyfriend or at least I thought he was. I don't know what to do. He won't answer my texts or calls. I'm thinking about going to his house.