Yes inappropriate boundary crossing on his part...I feel for you, it's awful to have our privacy invaded that way. However...Unless he has revealed your address or your name, I would let it alone. If you respond with hostility is will give what he has done 'oxygen'...he may well post more images or make inappropriate comments online if he knows how much it has upset you. Some people take great pleasure in causing upset in others....just let it be. (hugs)