I keep seeing this weird guy, i dont know him? ! HELP PLEASE !

I've had a dream for a few days now that I can't seem to figure out. For one I'm not in a relationship & have no desire to be in one but for some reason I get weird dreams of a guy that I can't see because his face is blurred.

My dream starts in a high school or college of some sort? & a guy is picking on me & I'm by a river walking with my friend & I remember being mad at him. Later the dream skips and I am in a dress with blood all over & I'm holding a bandage with blood on it that I feel is that boy from before & I'm looking for him & I keep crying & I hear someone say " your mine" & I keep screaming "no". Then police come & evacuate everyone from the building & try to stop me from going inside but I go anyways & this is where it gets weird.

I run inside & while I run its like I'm running in the past but at the same time in the future. Basically while I was running I ran past a younger version of the guy & he was looking at me but I kept running and as I ran the scenery changed to like a college of some sort and there was a landing and sun shining through the ceiling and the adult version of that guy was there & I hugged him & after I finished hugging him & pulled away to look at him, his face was worried & he was his younger self again & he knew what happened but acted like he didn't know & I tried to look at the clock & he stopped me & then it eneded. Someone help what does this even mean ??!