Do i have a ghost in my house or am I just thinking it from coincidental actions?

I believe you. I don't know if it's paranormal or not for sure, but judging by the dream, it's the guy from the dream. You have nothing to be afraid of though. In fact, fear is the only thing you should be afraid of because it is actually a spirit's only hold on us. Fear, anger, lust. Things like that. Just remember he can't do anything you don't let him. Let him know he isn't welcome, if he isn't. Speak aloud in a stern, but calm voice and tell him you don't him in your house or in your thoughts. If you believe in Jesus or angels ask them for help or support to give you more confidence.