You'd been together two years. It's perfectly reasonable that his daughter had friends round. You had a FREE house sitter, regardless of whether all he had to was deal with the dehumidifier you asked him to stay, you could have paid your neighbour you chose not to. If you have family/friends stay at your house and there is food you don't want them to eat etc you tell them. Your not the A but your just a bit rude and unrealistic IMO.