I think this is a pretty easy fold. You're behind a set most the time here. You were the preflop raiser and you bet the flop strong and he still c/r you all-in. That's pretty strong. I think best case scenario is that you're against something like the nut flush draw in which case you're about 50/50. So I think more than half the time you're crushed and the rest of the time you're 50/50. Seems like an easy fold to me.