We are 50 ish big blinds deep here which is important in this hand. Its important because if this happens to you with 30 BB or less (depending on villain dynamics) you can just rip over his 3 bet. However, since we are deep here I like the raise you did pre flop and the sizing and I like just calling behind here. When Villain jams on the flop we need to start thinking about the worst
hands he would do this with. I don't think he would be
bluffing here too often ( I would be wrong in this case) so I would start with is he doing this with smaller pocket pairs? My answer would be definitely not. Then I would go to big Axs and would he be doing it with those? I would think not (wrong I know I am) but that would tend to make me fold. I think overall on this hand you should be folding on the flop.
Many will say isnt that a passive line to take with 7s to call the raise and fold on the flop? I would say yes it is but I dont expect villain to just jam the flop that often on a board texture like this with just over cards. I can't come up with a ton of hands or any really that he should be doing this with that we beat. Therefore, when he bluffs here, kudos to villain so I will fold here knowing way more often that not I am beat.