Q2s in the big ole blind

[ErrantNight]

3/6 6 max

As the title implies... I'm dealt Q2 crub in the biggie.

Button open limps. Which is as much of a read as I had/you need. Small blind calls. He is loose and terrible. He seemed passive but I didn't have many hands on him. Definitely goes too far, definitely calls down too much.

EDITED TO ADD: like calls down with busted draws with as little as Q high

The flop read: 2spade 6spade 3crub
villain bet, I raised, button folded

The turn brought an 8heart.
Check, bet, call.

At the river: 10heart
Donk.

I... ?