It is unfortunate that your stay turned out so badly. I would have been happy to answer any questions before your arrival but did not receive any response when I messaged you to find out a little more about your requirements. It may have been better if you had come and collected the key yourself, rather than sending your friend, although as he was supposed to be staying too, I thought he might have told you where it was. When you returned after your party at 0420 I was alarmed when you came into my bedroom and then went into my other guest's bedroom and my daughter's room which was fortunately empty. I didn't hear the 4 calls you made at 0340 as my phone was switched to silent but we were all woken up as you were talking noisily for several minutes in your room. I realise that you have not used Airbnb before but when you enter someone's home you should not go into rooms with closed doors, particularly bedrooms in the middle of the night. I had left your room open after your friend had been to look round the house and assumed that you would both be coming back to stay after you had been to your party as he seemed happy with the room and said it was all fine when I asked him if it was ok. The angry call from you 10 minutes later was unsettling but you did admit that you hadn't looked at the description of the room and thought you had booked 2 double rooms, something I couldn't offer you, however I did offer you another single room at no extra charge. I only realised that you were not both in the house when your friend rang me in the morning to ask me to knock on your door as you were not responding. I explained what had happened and asked him to come and collect you. He apologised on your behalf. When you came down you seemed indifferent to your behaviour so I asked you to leave, albeit 15 minutes before your check out time.
Fortunately my other guests were very understanding about the disturbance and I had a chance to clean up the mess in the kitchen before they came down for breakfast as I realised you had helped yourself in the early hours.
I will put this down to experience and continue welcoming guests to my home as it is usually a very enjoyable experience.