i open 4578hh from CO

btn calls

bb 3bets pot

I call (?)

btn 4bets

bb calls

(btn always 3b AAxx IP, has rundowns in his back 4bet range)

Friend told me I should be folding to the 4b because BB usually has me dominated as well as BTN. If assuming both villains do not have AA type hands. BTN could have KKxxs.

Thoughts?

Hand 2

btn raise

i def QJT5dd from bb

flop : Jd6h7h

I check

btn bet

(btn is quite a station/sticky, very aggressive gets in light)

How does having the BD SD/FD affect my decision?