You should be happy with making more correct decisions than your opponents. If I lose a buyin or two, but I made the right call, then I should be happy about that.

Hand 1: oh noes, you lost HALF a buyin to a higher straight
you gotta think he's vbetting a rivered set or two pair some of the time or the same straight
the fact that he didn't take a shot at it on the turn with a straight draw + flush draw just shows he's bad

Hand 2: I like the check on the turn and the call on the river although it's hard for him to be vbetting a worse hand, he could still be bluffing a busted straight draw