Saved by a demon (Darkiplier x reader)

As I got home from work I turned on the TV. Three murders had accrued on the next street over. Lucky I had finished college a week earlier so I didn't have to walk anywhere. I locked my doors and windows just in case. Then got my iPad and turned on my favorite YouTuber markiplier. I went and got some hot cocoa then went up to my room. After a few videos I turned off my iPad and went to bed.

I woke up with a start. Something had crashed down stairs. I grabbed the knife from under my bed and locked the door. "That won't do you any good girly." A voice said from behind me. I spun around to see a man with red glowing eyes and a suit. He was sitting on my bed. "I-um." I backed toward the door, fiercely trying to unlock it. "Trying to get away already, the fun hasn't even begun yet." He chuckled as he walked closer, it was then I noticed he looked exactly like markiplier. But that meant he was darkiplier, but he was made up by fans. "Oh no dear, I am as real as you are." Great he can read my thoughts. "What if I'm not real." I remarked with a smug look on my face. He grabbed me by the neck now smiling. He then pinned me against the wall. "Don't sass me girly, because I assure you if you keep running your mouth you are not gonna like what comes next. You may not believe it but I am your worst nightmare." I was trying to look like I wasn't scared but I'm pretty sure I failed. I blacked out from lack of oxygen. What have I gotten myself into.