Dreamed That I Was Someone Else

Last night, I had a dream that I was someone else. I knew the person too. I keep having dreams about this person too. So, this was the dream: I was that person but I couldn't see who I was. I just heard the name of her. I was at her boyfriends house and I met his twin brother. We shook hands, and he was dating this other girl. He told me he didn't really like her. So then I awkwardly was holding hands with my persons boyfriend. We went to the mall and he told me he loved me. Then he sang a song to my person. And then at the end of the dream he got beat up. Then I woke up with a start. I don't know if this means something or what. But its creeping me out a little. I feel weird because know I feel like I'm starting to like the girl I was, boyfriend (I am a girl so you know) and she keeps glaring at me. I've also had a dream similar where I was watching her cry because she thought her boyfriend (same person) cheated on her because some guy told her so. Then he came and saw him comforting her and said "I can't believe you." and walked away and then they got in a fight and in the middle of it I woke up confused. Could someone tell me what this means? And I also have another story coming up about something else...