Ok, he said that someone hacked his account and he gave me a negitve saying how

Ok, he said that someone hacked his account and he gave me a negitve saying how i edited me msn conversation and how i am a retard. Also he told me he didnt trade for gamecards and he keeps on relisting for the rogue that he scammed off of me. Then after that he said that he had the real msn convo. How do you have that if you got your account hacked and then he said that I edited my convo. How would you no that if you say that your account was hacked and it wasnt you who scammed me?