(uncle)in her letter. Otherwise, I might not have known which Michael she was referring to...
Do not allow Michael (uncle) to stay in your apartment at any time!
If he shows up, say your girl-friend is there and there is no room. If he calls, say the same thing.
He has no way of knowing. Fore-warned is fore-armed!
Remember, he is not one you can trust for 1 minute and if you value your things, do not allow him in your apartment at ANY time.
P.S. Don't hesitate to call the police if he gives you any trouble!