10NL FR | TPTK vs river shove

Villian is 44 | 11. I am trying my best to learn to fold! I decided to fold in this spot even though I really didn't want to. lol Good? Bad? Ugly?

PokerStars No-Limit Hold'em, $0.10 BB (7 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

MP2 ($9.90)
Tragic Hero (CO) ($15.95)
Button ($4.65)
SB ($6)
BB ($10)
UTG ($2.05)
Villian Dressed In Black (MP1) ($18.75)

Preflop: Tragic Hero is CO with Khttp://www.flopturnriver.com/phpBB2/...es/diamond.gif, Ahttp://www.flopturnriver.com/phpBB2/...iles/heart.gif
1 fold, Villian Dressed In Black calls $0.10, 1 fold, Tragic Hero raises to $0.50, 3 folds, Villian Dressed In Black calls $0.40

Flop: ($1.15) 8http://www.flopturnriver.com/phpBB2/...es/diamond.gif, Qhttp://www.flopturnriver.com/phpBB2/...miles/club.gif, Khttp://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
Villian Dressed In Black checks, Tragic Hero bets $0.85, Villian Dressed In Black calls $0.85

Turn: ($2.85) 4http://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
Villian Dressed In Black checks, Tragic Hero bets $1.80, Villian Dressed In Black calls $1.80

River: ($6.45) 6http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
Villian Dressed In Black bets $5.60

Good fold, he has a flush here 80% of the time and the other 20% is 2pair, sets

Edit: Don't take those figures too literally, I just meant this is rarely a bluff and you can't beat anything.