Hi I'm Brianna and I need your help?

i had a one night stand with this gorgous guy and he got my number the day after.. he never texted me. Two weeks later i ran into him at the bar he said hello and we started talking. He then told me to follow him to the back. In the back he quickly left me standing there to go talk to some other girl?.. He never came back. Then, i passed him and playfully said "hey your a jerk" and he said "no you dont understand there was a bad situation i walked myself into so i had to leave" He then bought me a drink and introduced me to his best friend. His best friend whispered something to him and then he sort of acted a little shady. He said are you coming in the back of the bar with me and i was like "i dont know" (i was trying to play hard to get) He then said "well you figure that out" and proceeded to the back of the bar with his friend. An hour passed and i went to the back of the bar and saw him standing talking to this hot blonde girl. I said "hey whats up" he turned around, smiled at his friend and exscused himself to the bathroom. I got the impression he was trying to get away from me. I was so embaressed and upset. Later on that night i was down the street at a different bar, crying to my friend about it and i turned around and saw him going to the car with the hot blonde! hand in hand! .. can you please anaylyze this situation and tell me what im supposed to do the next time i see this kid.. i mean do i have the right to be pissed considering it was a one night stand.. was i not hot enought?.. was he embaressed of me?.. or was it just that he didnt wanna be attached to me all night.. this situation really killed me- i learned my lesson