All fine, except I woulda got that extra bet in on sixth I think. If he doesnt have much he may let it go, to raise fifth you had two pair or better, so either you have a flush or a house now, in my mind anyways. Then again you won the extra bet on the end, so all is good. Dont think folding third is correct, your pair is buried so you have high implied odds if you do hit your six.