My roommate is a very selfish person, he always uses my things without my permission he acts like he owns the whole room. So here's how the story goes:

Yesterday I wanted to play his Xbox 360 and he refused to let me play it as a matter of fact he wouldn't let me even NEAR the thing. So after a few days going by I decided it was time to save up for a new console with my own money. So after a month or 2 I was finally able to get a Ps3 for myself (and GTA 5) My roommate all of suddenly texts me saying "Oh my Xbox got the RROD" so I kept walking to my car and drove back to the campus.When I got home with my PS3 he started to get curious for what I bought. Once I took the PS3 out he started to jump up and down saying "Yay a new console for me and you" then he started going even crazier when I took out gta 5 even coming to the point where he started hugging me. After that we both played GTA 5 and went to sleep. At Midnight he ended up sneaking on the PS3. . Instead I ignored it and let him play. Then I heard a cracking sound when he opened the door. I heard it and went to investigate only to see the door jammed. ..

And what was his reply

"Im going to bed"

Such a ignorant roommate

What should I do?

I have the warranty on it but im going to have to pay a little extra cash to send it in

Any suggestions,?