hi - i met and dated a man on the internet - i sent him things for his bday and xmas and stuff...then a friend told me the address i was sending things to was for a woman - so i asked about it and he told me he was using a friends address. then i found out he was posing as a man and was really that woman....so now is there mail fraud or criminal impersonation? or what if anything can i do - to make sure this doesnt happen to someone else?