Thanks, for understanding everyone. I have spoken with this guy, I think he has put a virus on my computer from some files he had sent me and got my passwords. Sorry for the confusion.
From what i can see, Alex1212 is alt of FattyPonzi who is spreading mallware in his thread here:
https://bitcointalk.org/index.php?topic=972939.0So maybe you picked it up there. And if you are still infected, your passwords and accounts are compromised also.
cheers