I moved in to a new place about 5 months ago, and while moving in I was warned that my roommate's cat is bad with wires. He mentioned that he has destroyed a couple of wires in the past, but seemingly nothing that bad.  

Four months into living there I was charging some wireless headphones in my room on the wall and was busy doing some other chores, so I wasn't near my room or really paying attention. The door was half-open. Now, the cat has never entered my room before and hasn't eaten anything of mine, however I get back from my chores and the cat has eaten through my very nice and brand new headphones.

Upon seeing this I asked him to replace them ($180) since they *were* in my room and the fact that I use these things every day. Later on, he told me that this cat has eaten THREE of his pairs of the same headphones in the past, which leads me to believe he never really disciplined the cat after eating his own things. 

Am I the asshole for requesting that he pay me back despite him saying the cat is bad with wires? 