Sorry to read of your situation, Purple. You are right to feel to the way do, I dare say we all would feel the same way. Im puzzled for the reason, why does the house need looking after while he is away for 4 weeks ? When my Jane was living in Manila I was going away for one or two months at a time. No one babysat my house. I told my trusted neighbour and gave my cell number in case of emergencys thats all. No way would I ever involve my ex in our everyday lives no way. I read what others have said and I dare say its all innocent but, I for one would not be best pleased if my wife's ex's was involved her life. Its just not right. I dont want to come across as a doom and gloom merchant but, You need to get it sorted, nip it in the bud if you like. Good luck