Is the interested party suggesting that you should pull the auction before it ends, if he offers you enough money?
That annoys me a little when auctions disappear before the end, or people saying "I have the right to end this early.." yadda, yadda, yadda. It is good form to let it run until the end and set a reserve if you don't want it to end lower than that.
Your seller profile will work against you. Having only one feedback to your name and less than a month old will not make many trust you instantly.
Also, that one feedback does not inspire trust, as you have seemingly bought a dog T-shirt from www_pimpmyrags_com, which is unsettlingly close to your username here. Did you buy a t-shirt from yourself or did you like the name of the seller so much, you chose to use a variant as your forum name?
As to the value of 69fk.com, I don't know. Letters and numbers not always a good mix, but yours is pretty memorable, IMO, which could count for something.