In the first hand he bets most his table money on a flush draw. Unlucky for you he made it. Nothing you can do there, it’s a bad beat.

#2 he is trapping with KK. No PF raise and no bet on the flop with the obvious best hand. Odd way for him to play though it paid off for him when you made your hand. I have seen players like this. They will never bet with the best hand and just wait for people to bet into them. They think they are being smart. I would have done the same as you except I am apt to semi-bluff the flop there…very likely the same outcome unless for some reason he raised the my flop bet...at which point I would fold.

#3 your opponent is being carefull because his kicker sucks. Id put him on a weak A and likely play the hand the same. He just got lucky with the flush.
I would have lost all of these.