What does it mean when you have a dream about someone you dont know?

Ive only had three dreams about this guy. I dont know him at all. Never seen him before. But one dream was months ago when he asked me to be his girlfriend and i excepted. the other dream took place after the first but i cheated on him and didnt claim him to be my boyfriend only when we were together and the latest dream was the night before last when he was asking me why dont i talk to him anymore. we were by a dock at nighttime by a lake and he asked me so are we together and before i could say anything ( though i was going to say yes anyways) he yelled at the top of his lungs "we're back together everyone" and right before he was about to kiss me i woke up. Now i cant stop thinking about him ... please help me