You said you did in fact use the account, he got the money as well. Due to that, your business and transaction is finished with him, you used it for around 3 months, your transaction would have been finished 1/4 a year before you ran into any problems, if you did what you were meant to do, that being change the password and everything, you would have ran into no problems UNLESS you were in fact keylogged, scamming is not the case here, it's a classic fuckup on your part. Thank you for giving me lulz today, but you sir are a disaster.