Holdem No Limit - $1 BB

SB ($125.25)
BB ($173)
UTG ($107.75) [Hero]
MP ($97.25)
CO ($74.75)
Button ($78.25)

Hero is UTG with J, A
Preflop: (5 players, $1.5)
MP folds, CO calls $1, 2 folds, Hero raises to $4, CO calls $3

Flop: 2, 5, T (2 players, $8.5)
Hero checks, CO checks

Turn: A (2 players, $8.5)
Hero checks, CO bets $4, Hero calls $4

River: A (2 players, $16.5)
Hero bets $12, CO raises to $36, Hero ???

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Villian is 70/4/0.6 over 30 hands.

How do you like my line up to the river, and what's your river move and why?