that second one is tough...
What did you put them on post flop? you were on the draw too. which is fine. you took control of the betting there.
i wager he was trying to slow play you. if you'd have moved all-in he probably would have called... same situation. by taking control of the betting you saved yourself from going completly broke on the hand.
outcomes sucks
but it was a good betting effort on your part
