[Dr_Doctr]

I bet 3 because that's my standard c-bet size and I don't see what huge difference betting 4 would make. Increasing the size of c-bets by silly amounts like 25% just because of board texture is over-rated and it makes basically no difference.

If you are sure he has a flush why bet the turn and get raised?

If you are sure he has a flush why donk into him and not go for the crai?

I don't think your post makes any sense at all. Please explain instead of just saying I played it badly.