"Call vs 4-Bet 77%"

Wow.

Just because you 3bet, it does not mean you have to call a 4bet. Lay down hands like AQs and JJ to a 4bet unless the 4bet is a shove and you're priced in, ie you 3bet to $0.36 and he 4bets to $0.60 all in. Keith is right, this is a MAJOR LEAK.