Are you kidding me?!!

Oh, lady Luck, you sexy temptress. You gave me a wink showed me a little skin then turned your back on me.
On my lunch break the other day I went home for lunch (I only live a few minutes from my apartment) and decided to play a little Party Poker.
I was doing ok, win a little, lose a little. Just before I was going to stop and go back to work, I was dealt an Ace and 7 of diamond. Sometimes I just throw these away because the odd of getting a flush are against me, but having the Ace made me keep them and call to see the flop.
The two of the three flop cards were diamonds, so I decided to stay in, but the guy across from me was raising all calls. The turn card was a 6 of diamonds, I had my Ace high flush. High odds of winning the pot. The guy across from me was still raising all calls. I was playing at a $1/$2 and the pot had grown to about $32. The River card didn't matter because I already had my winning hand, but what did the guy raising me have?
Ok, show the cards, the guy had a pocket pair of 6's, one 6 on the flop and another for the turn. Four of a kind!! Are you kidding me??!!
Oh Lady luck you sultry tart, you tantalizing sexy demon. How you tricked me with your evil ways. But I will be back, and it will be me on top of you. I just might slap you around a little bit, not to hard, mind you, just to get the blood flowing! Yes, I'll be waiting for you, soon as I sell some of my blood so I can play again.