25NL - River play with a flush on a paired board facing overbet

[fievel]

BTN is 44/17/0.8 after 40+ hands. River AF is 1.6.
CO is 71/14/1.7 after 40+ hands.

Party Poker, $0.10/$0.25 NL Hold'em Cash Game, 5 Players
LegoPoker Hand History Converter

Hero (BB): $24.26
UTG: $30.79
CO: $15.77
BTN: $50.48
SB: $27.68

Pre-Flop: 7[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/heart.gif[/img] dealt to Hero (BB)
UTG folds, CO calls $0.25, <font color="red">BTN raises to $0.50</font>, SB folds, Hero calls $0.25, CO calls $0.25

Flop: ($1.60) 3[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/heart.gif[/img] (3 Players)
Hero checks, CO checks, BTN checks

Turn: ($1.60) 3[img]/images/graemlins/club.gif[/img] (3 Players)
Hero checks, CO checks, BTN checks

River: ($1.60) 4[img]/images/graemlins/heart.gif[/img] (3 Players)
Hero checks, CO checks, <font color="red">BTN bets $3.04</font>

I was going for a check-raise. How should I have interpreted that overbet?

[wslee00]

bet flop
bet turn
raiser river.

[Genz]

Since it's a minraise, the preflop call is good. But you should keep in mind: small flush draws don't play well oop in a raised pot since you'll have a) a hard time drawing since villain is very likely to cbet, b) have a hard time getting payed off when you hit since you need to donk or c/r which gives your hand away c) be up against a bigger flush when the money actually goes in. So don't overestimate the money you can make with those flush draws oop.

Here, I fire a bet on the turn. As played, I call. It's probably not a bluff, but I think he might be betting a weaker hand easily.