Mildly annoying 100nl river decision

100nl 100eff

We 3bb BTN KQss
Tight seeming BB calls

(6.2bb) 9s Ah Th
BB x
We xb

Turn Ts
BB 6.2bb
We peel?

(17.9bb) Jh...

..........................................
Recap that board

Flop: Ah Th 9s

Turn: Ts pairing the board and giving us a gutter to SF

River: Jh bringing in the front door flush and also making our straight
...........................................

And what does villain do?
He bets 44.5bb into 17.9bb (leaving 45.9bb back)

What's the move guys?