Hmmm.....Ok. You are completely within your right, to have this kind of important, late night event. Also, as you described, it was a memorial service. That being said, there are certain guests that choose particular places to stay, for a specific reason....perhaps he chose yours because he wanted Total peace and quiet,..he may be a bit uncomfortable with lots of people. Regardless of music, 10 people in a medium sized house, or garden , is going to create noise and a "party" type feel, regardless of it being a memorial, wake etc. They are still talking. Theyre not just sitting there in Total silence. I imagine on your listing, you have a "quiet"time listed under your house rules. The mistake that was made, in my opinion, was that this guest didnt have a couple of days heads up, explaining that people would be in your home Very late, for a memorial, and apologizing for it In Advance. Maybe even have given him a $25 gift certificate to a local restaurant , for the inconvenience of it. I cant imagine you decided last second, to invite 10 people back to your house, when you have a bnb guest...you must have known at least a day or so ahead that you might have guests . And, after 10pm, in bnb terms, is considered very late. If he had done the same,......well, you get the gist. You didnt do anything wrong....but you could have communicated it with him more clearly, and in advance. Now, this guy IS a jerk....there is no questioning that. He is High strung, a control freak, and resentful and Not a pleasant guest. He is the exact sort of person, who Wants total peace, and quiet, and does not want to walk into a house full of people. He probably heard footsteps outside his room at 1:30am, and talked himself into believing someone was going to open his door..you know his ear was AT the door, right? So, for his review....be honest. State that you had a memorial at your house for a departed friend, and that you believe the # of people unnerved your guest for some reason, and for that , you are sorry. Explain that as much as you tried to treat him well during his stay, he really didnt forgive you for that, and he was very apparent in how rudely he acted toward you. Be kind, in stating that your sure he is a good person, but he just never got over that one night, and treated you rudely from that point on, no matter how hard you tried. For your future reference, I would give a guest as much heads up as possible, for any large gathering. Most people are cool,...this guy was a problem waiting to happen, and you created the perfect storm for him to Shine as a Jerk.!