<human>: My cousin and I are saying at my parents' house for a family gathering. He is staying in the living room and I am staying in the adjacent bedroom. At midnight, I asked him to turn Netflix down because he wasn't watching it (he was surfing the internet) and it was keeping me up. He declined to turn it down or put on headphones. 

At 12:30, I took the power cord from the modem, went in the bedroom, and locked the door. He responded by banging on the bedroom door for 10 minutes (I timed it) then going outside and banging on the window by the bed for 7 minutes. My parents woke up and asked him what he was doing. 

He stated "She fucking started this fucking mess by fucking taking the fucking cord. If she hadn't fucking done that, I wouldn't have fucking banged on the fucking window."

My parents told him to go back to the living room. He refused to go without the internet cord. They told him to watch Netflix at a lower volume. He refused. They then told me to give him back the cord to resolve the matter. (they have a long history of enabling his behavior). I did so I could at least try to go to bed. 

Who was in the wrong here? 

Also, I paid for his flight here and back because he doesn't currently have a job. Would I be in the wrong to cancel his flight and tell him to find his own way home? I used SW so I won't have any fees for cancelling. I'm tired of him facing no consequences for any of his actions. 

I've also been holding a roomful of his personal belongings for several months after he asked me to hold them for a few weeks, and the exterminator who came to my house this week for bedbugs (gross!!!!) told me they likely came from his stuff -- he was evicted from his apartment for getting bedbugs and ignoring them. He told me he took care of the matter before giving me his stuff.

Can you condense the text into three sentences or less?
<bot>: Cousin wouldn't turn down Netflix; I took modem power cord; he banged on my door/window until my parents confronted him. Who's wrong?