[Dante]

I think your fold in the first hand was fine, especially with your observation that he usually has a good hand when betting/raising. The board pairs and there is a flush draw...nothing wrong with throwing it away when faced with calling 2 cold. The math is 8 small bets preflop + 5 small bets on the flop. If the rake is $3-$5, that's about 1 small bet leaving 12 small bets (6 big bets) in the pot. On the turn, there's 3 big bets in the pot already giving you 9-2 at that point (the original bettor could fold, but could also re-raise). The chance of the re-raise, plus the fact that the 2 flush outs that make your hand may not be clean, plus the paired board make it an ok fold and it would be just fine in the 10-20 game I play in.