TP hero call on 4-straight - good/flawed thought process?

-Villain in this hand is a good reg, Bruut
-He has the button on 3 tables to my blinds and I have been 3betting him almost non-stop
-I shipped Ax over his 4bet and he had AA and I lost, I shipped over another 4bet later and he folded
-He's probably getting sick of me, and I'd expect him to be capable of 3betting light here on the button vs my utg open

Thought process:
-flat pre, think he's either shipping a pair over a 4bet here or folding nonsense, given dynamic. Most of my action has been vs his button opens and not with these positions
-flop I donk, I expect a lot of his merged range of hands Tx,Jx,Qx,Kx, floats to call this flop (but check back if I check)
-I don't expect him to 3bet TT/JJ too often vs my utg open, and if he did he would likely raise this flop (discount TT/JJ a lot), he'd probably also raise KJ often (discount)
-I probably have more TT/JJ in my range, I'd expect him to bet any Qx on the turn the majority of the time (discount Qx)
-I don't get what he's betting on the river, that didn't raise the flop or bet the turn, other than KJ/T9/J9 if he 3bet these pre?

River call because he doen't make sense and I'm likely ahead
River fold cause he might value bet some random two pairs with 9x or KJ
River jam cause he doesn't have a straight and might fold 9x or KJ?


$2/$4 No Limit Holdem
6 Players
Hand Conversion Powered by weaktight.com

Stacks:
Hero (UTG) ($574.80)
UTG+1 ($465.60)
CO ($484.70)
BTN ($406)
SB ($558.35)
BB ($757)

Pre-Flop: ($6, 6 players) Hero is UTG
Hero raises to $14, 2 folds, BTN raises to $44, 2 folds, Hero calls $30

Flop: ($94, 2 players)
Hero bets $65, BTN calls $65

Turn: ($224, 2 players)
Hero checks, BTN checks

River: ($224, 2 players)
Hero checks, BTN bets $140, Hero ??