So I paid you for the monitor and you sent me a refund via paypal which I'm still waiting on, but didn't tell me as to why you refunded me or anything.
I'm guessing someone offered you more for the monitor since you didn't say anything, regardless it's pretty shady!!
Buyer beware of a guy who backs out on a deal w/o saying anything. I'm only posting this after several pm's with no reply and the seller has been online.