Thank you for sharing your dream. I personally like interpreting them. I think the house represents something. Maybe it represents the "house" or inner emotional space you keep all your friends. I think your friend sleeping may represent something. Is he disconnected from reality in real life? Or depressed? Your mind even perceive him as being distant from all his friends since others were hanging out elsewhere. The fact that you weren't hanging around the friends but instead were paying attention to him and trying to find him might mean your mind is distracted by his behavior or your spending too much time paying attention to him. Because you wanted him to sleep in your room in your dream might represent your real life attempts to try to become a closer friend to him, but he isn't opening up. The fact that he was only outside your window and possibly sleeping in this truck bed when you tried texting him might mean he's hiding this problem from you, and is quick to run away.

I think the end of the dream comes to a climax where you feel he's just going to hit the ground any moment, and in real life you might fear something bad will happen by his behaviors?

In case this doesn't fit him, than maybe only his image was used, and you feel this about someone else?

Even if this is all wrong, it's an interesting dream.