slow play gone bad

Ok tell me off, I figured that if the river wasnt a heart he would come in with a bigger bet or the same and become more pot commited and i could reraise and as i didnt raise on the turn maybe he'd put me on a bluff. So i was betting that a heart wasnt coming (75% ish) and even if it did drop i still had a slim chance.
Or should i be happy with the $21.50 in the future
PS it would have been nice to see the straight flush so I think I would do the same but ignore this fact if anyone cares to answer.
thanks.
EDIT I just reread and the straight flush may well become part of your answer, imagine 9h on river and he has k high flush.



PokerRoom No-Limit Hold'em, $1 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($49.45)
BB ($51.75)
UTG ($31.95)
UTG+1 ($37.05)
MP1 ($40.30)
MP2 ($65.65)
MP3 ($49.45)
Hero ($57.05)
Button ($33.50)

Preflop: Hero is CO with 8http://www.flopturnriver.com/phpBB2/...iles/heart.gif, 7http://www.flopturnriver.com/phpBB2/...iles/heart.gif.
5 folds, Hero calls $0.50, Button calls $0.50, SB raises to $2.25, 1 fold, Hero calls $1.75, Button folds.

Flop: ($5.50) 8http://www.flopturnriver.com/phpBB2/...iles/spade.gif, 5http://www.flopturnriver.com/phpBB2/...iles/heart.gif, 6http://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
SB bets $3, Hero calls $3.

Turn: ($11.50) Thttp://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
SB bets $5, Hero calls $5.

River: ($21.50) Ahttp://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
SB bets $15, Hero calls $15.

Final Pot: $51.50

Results in white below:
SB has Kc Kh (flush, ace high).
Hero has 8h 7h (flush, ace high).
Outcome: SB wins $51.50.

I'm probably raising this on the flop and turn, and never calling the $15 river bet. What bets out here that you beat?

yep bad river call on my part

I don't mind the flop call, but you have to raise this turn. The river is a terrible call.

raise the flop, you usually are ahead and have loads of outs if your not.

never call this turn.
If you always raise here then you can raise as a bluff here too.

Since the SB raised first AND will be first to act after the flop, I would tend to put him on overcards or PP. As such, with the flop being so favorable to you, I gotta think that reraising the flop sends a message that I got a better hand than you. He calls. Then when you hit your flush on the turn, I would says bombs away. Though I am certainly weak at reading hands, I would think the only hands that call are higher flushes (AQ+) and if that is the case, well you now understand how I lose my money.

Just my $.02