Fernando2z00

Hey RIO! This is my first post and I hope that my English is not too bad.
I play 10NL Snap on 888 poker and I´ve been having issues with a 60 bb player that 3bets me from the blinds really frequently with a lot of weak hands. I open smaller (2.2bb) when he is on the blinds, and he 3bets me for 8-9 bbs. My problem is that I never 4bet bluff him and he is very agressive post flop. Can I really bluff 4 bet him to 20 bb and then fold to his jam or will I be forced to call with some some weak hands given the pot odds? Any kind of advice will be helpfull.