[Albert Moulton]

Bet less on the flop. $1 or even $1.5 is fine. Overbetting isn't necessary. And in this case a smaller lead might have resulted in a smaller raise.

I'm usually willing to give up tons of equity OOP in unraised pots with 2-pair hands in order to avoid the reverse implied odds. 2-pair in an unraised pot is often a sucker hand, especially if straights and flushes are possible, and double especially OOP. So, I'd either fold to the big flop raise, or call the raise once to see if I hit a miracle boat on the turn, and c/f when the spade comes.

If your read on villain is that he'd raise the flop with top pair only, and then bet the turn with top pair plus one big spade, then c/c the turn and c/c the river is fine. He might show up with less than top two pair. But not very often.