Is he cheating?

I was doing some cleaning in my room today and I was making a cute little hookah chill-out spot in my room for my husband for when he gets home just so he can relax and enjoy his hookah and when I was organizing his things in the little hookah area that he has I found a hotel Key to a room ladies tell me your opinions because I honestly don't know what to do right now I am honestly freaking out and my first instinct is did he cheat on me I did confront him about it and the first thing he does is tell me that he doesn't want to come home and that me and him are through