A little side bet

I've played one HU match today. I was quickly chopped to a 2:1 deficit. Then I raised with 33, flopped a boat, played the hand to perfection and took a slight lead.
I lost the lead, as my opponent kept the pressure on. Then came this hand.

*********** # 18 **************
PokerStars Game #2169273540: Tournament #10412090, Hold'em No Limit - Match Round I, Level I (10/20) - 2005/07/23 - 15:39:46 (ET)
Table '10412090 1' One on One Seat #2 is the button
Seat 1: maxv2 (1660 in chips)
Seat 2: BurntOrnge (1340 in chips)
BurntOrnge: posts small blind 10
maxv2: posts big blind 20
*** HOLE CARDS ***
Dealt to BurntOrnge [2h 2d]
BurntOrnge: raises 40 to 60
maxv2: raises 120 to 180
BurntOrnge: raises 1160 to 1340 and is all-in
maxv2: calls 1160
*** FLOP *** [3d 4s 6d]
*** TURN *** [3d 4s 6d] [Jh]
*** RIVER *** [3d 4s 6d Jh] [5d]
*** SHOW DOWN ***
maxv2: shows [Qh Ah] (high card Ace)
BurntOrnge: shows [2h 2d] (a straight, Deuce to Six)
BurntOrnge collected 2680 from pot
*** SUMMARY ***
Total pot 2680 | Rake 0
Board [3d 4s 6d Jh 5d]
Seat 1: maxv2 (big blind) showed [Qh Ah] and lost with high card Ace
Seat 2: BurntOrnge (button) (small blind) showed [2h 2d] and won (2680) with a straight, Deuce to Six

Pretty wild by me, but a pair is usually good HU and he was very aggressive. He could have always folded the AQ. I was playing passive compared to him.
He was unimpressed.

maxv2 said, "genious"
BurntOrnge said, "yawn"
maxv2 said, "hey tilt monster"
maxv2 said, "calm down"
maxv2 said, "I don't want to see you at the play money tables tommorow"
BurntOrnge said, "uh huh"

I finish him off when I raise with K8cc, flop top pair, and put him all-in on the suited flop. He has middle pair, no kicker and a heart draw. He doesn't connect.
BurntOrnge said, "gg bro"

maxv2 [observer]: see you at the play money tables!
BurntOrnge [observer]: I won't be there
maxv2 [observer]: side bet?
BurntOrnge [observer]: but say hi to the guys
BurntOrnge [observer]: ok
maxv2 [observer]: 1k?
BurntOrnge [observer]: on if I ever end up there?
maxv2 [observer]: I give you 2 months
BurntOrnge [observer]: deal
maxv2 [observer]: bye bye
BurntOrnge [observer]: we need a witness

Remind me in two months to track this guy down and collect my $1K. How exciting.