5/10 HU hand

[philipsaurus]

saw some random non-reg sitting, so i decide to join. no real strong reads, he hasnt done anything donkworthy yet, but has been very passive preflop. we're probably 40 or 50 hands in, and i dont think he has 3bet me once pf yet, or has he ever raised the bb when ive completed the sb. postflop, it seems like he has normal aggression for hu. i cant be sure tho. ive been very aggro thus far, i think he knows that i will river bet with a wide range. anyway.

i raise J8s from the button to 35. he calls.

FLOP (pot = 70) 845r. he checks. i bet 55. he instacalls.

TURN (pot= 180) A, that puts out a fd. check, check.

RIVER (pot=180) J . check, i bet 150, he jams. its like 700 or 800 to me.

do you call if the J completes the bd fd? what if it doesnt?