My roommate and I share a studio apartment and we’ve gotten along perfectly until this.

So I have this friend. We met maybe 2 months ago and only became closer a month ago. We spent half an hour to an hour together every day and he REALLY liked our place so he was here a lot. Didn’t live here necessarily but he was around. We were never loud or disruptive, he never ate food that didn’t belong to him, never made a mess. He helped with chores once in a while.

He usually honestly hangs out in our bathroom since he really likes darkness and humidified air but he is totally fine with my roommate coming and going as needed. 

The other day my roommate went into the bathroom and SCREAMED upon spotting my friend. I wasn’t home at the time but when I came back my friend was nowhere to be found and I haven’t seen him since. 

So AITA?