Dream About Escaping Killer Chainsaw

Someone with a chainsaw was chasing me, my girlfriend and a few other friends and while running me and my girlfriend got separated, and then a few other friends got separated as well. So me and the two friends still with me ran to our school and hid in there, then my girlfriend and the other friends I lost met up with us in the school. I felt really guilty Abt leaving my girlfriend behind and cried, and they just kept telling me it was ok. and then I told everyone we needed to leave, cause the killed was still coming and he would find us in the school, but another friend was arguing with me and telling me the murder couldn't make it to the school and we were safe, but then the murderer came to the school, and began killing everyone in the school including a lot of my school, so me, My girlfriend and 3 other friends ran out of the school, and our hall monitor was outside, and tried to stop us from leaving, and didn't believe us when we said there was a killer. But he couldn't go on to the grass so we ran over the grass and managed to run passed him and a little down the road. But after we managed to pass him my friends and girlfriend stopped running cause they thought we were safe, and I was screaming at them we had to keep going but they wouldn't go, and I felt super guilty about leaving my girlfriend earlier so I stayed and refused to leave her again, but I kept trying to get everyone to keep running, and I saw the killer kill the hall monitor, and then he turned to us chased and we all ran, but two of my friends were to slow, and got killed by him, so me, my girlfriend, and on other friend, ran into a neighborhood. But then I realized that the neighborehood was fenced in and all the doors were locked, and we were stuck, (I don't know how but I knew the killer paid everyone to leave the neighborhood and purposely made the neighborhood so we couldn't leave) so I ran around trying to find a way out, and my girlfriend ran away from me and I lost her again. I realized I couldn't escape, so I just sat down behind a wall and waited for him to kill me, and my friend sat with me. We heard my girlfriend scream, and I knew he killed her. And then my friend looked at me (I was crying and he was really calm) and he said "welp guess that's it" and just pulled out his computer and began to work on homework. I heard the killers footsteps and I woke up right before he killed me