25/50 HU, deep vs Terken river spot

[Ansky]

I had heard terken was some euro god on non US sites, but I was curious and thought id give him a bit of action. We had been 4 tabling for like an hour or so when this hand came up. Overall I think he respects my game, and probably thought I was capable of playing lots of hands this way. I have been 3betting a fair amount of the time.

He has caught me double barreling a few times, though every 3 barrel he has either folded or called w/ a worse hand.

I realize that HU hands are very hard to comment on w/o being there and really knowing the dynamic, but I thought this was a v interesting spot.

Terken has 12.3k, and I cover.

He opens the sb to 150, I make it 550 w/ KhQh, he calls. He has not 4 bet me at all on this table (other tables we were shallower and he 4bet/called w/ QQ a couple times).

Flop is 2 [img]/images/graemlins/heart.gif[/img] j [img]/images/graemlins/heart.gif[/img] 2 [img]/images/graemlins/diamond.gif[/img], I bet 750 he calls.

Turn is Q [img]/images/graemlins/diamond.gif[/img]. I bet 2150 (into about 2400). He calls after thinking for ~20 seconds.

River 5 [img]/images/graemlins/club.gif[/img]

He has 8900 or so left.

Pot is 6899.

I think there are 3 clear options here, all thoughts appreciated.