Jealous?

Meet up

Felix knocked on the door of Jacks hotel. He had a box of cookies for Jack, he messed with his hair before the door opened..
Jack: Hello Felix!
Felix: Hey :3 brought you something.
Felix handed Jack a box of cookies, they were his favourite. Jack smiled and hugged Felix before inviting him inside.
Jack: Aw thanks! Love you so much. I needed these!
Felix: No problem. What time is it?
Jack: Seven fifty..
Felix: Ok Mark will be here soon.
They both sat down inside Jacks room and watched some YouTube together, the there was a knock on the door.
Jack: Here he is..
They both walked to the door and Jack opened it, Mark stood outside.
Mark: Hey, Jack. Oh hey Felix.
Jack/Felix: Hey
Jack: Come in!
Jack, Felix and Mark all sat in his front room, Jack and Felix sat together on the couch and Mark sat on a chair across from them.
Mark: So you are together! How long for now?
Jack: About six weeks now :3
Felix gave Jack a quick hug and smiled.
Felix: I'm going to go get a drink if that's ok, anyone want anything?
Jack: Just some Coke please.
Mark: nothing, thanks.
Felix walked out the room into the kitchen and got the drinks.
Mark: What brought you together?
Jack: I guess I just fell for him, he said he felt something with me and so did I.
Mark smiled, but it didn't seem real, he acted happy, but he was full of anger. He thought him and Jack had something too, but Jack didn't see him that way. Mark wouldn't give up though, Jack was his and nobody could take him from him. He wouldn't let that happen. Felix came back in with the drinks.
Jack: thanks, oh somebody has texted me. Oh, I need to go drop some things off. Could you guys wait here for about an hour?
Mark/Felix: No problem bye,
Jack hugged Felix and waved to Mark. He shut the door
Felix: I wonder what he was dropping off?
Mark: I don't know..
Mark looked straight into felix's eyes,
Felix: Do I have something on my face?
Felix felt uncomfortable, Marks eyes seemed to change darker and his teeth sharper. His skin went paler and he walked into the kitchen.
Felix: erm..M-Mark where are you going?
Mark walked back out of the kitchen with a knife in his hand..He looked at Felix and slowly walked up to him.
Felix: Mark what the fuck are you doing?!
He got up and backed away, Mark had tears rolling down his face and he started laughing.
Mark: He's mine...
Felix: M-mark I don't k-know what you mean but put down the knife for fucks sake...
Mark: Stay away from him.
He started weeping and Felix was against a wall now. Mark held the knife up to his face and grabbed his shirt...He cut Felix's face and blood dripped down onto the floor, Felix started kicking Mark in the legs hoping he would stop, but it did nothing. Felix started crying
Felix: Fuck! M-Mark please s-stop it.....
Mark smiled and tears fell from his face, he cut felix's arm and it bled on the floor. Felix groaned in pain and shouted for help, Mark cut him again on his other arm and then Jack walked in...