NL 200, a situation that confuses me

[Go_Blue88]

Hero ~1,000 Villian ~300

5-handed

UTG calls, Hero calls with QJ clubs, Villian raises to 8, sb calls, bb calls, UTG calls, Hero calls. Family pot.

Flop: Ac 5c 7c (pot ~40)

UTG checks, hero bets 35, Villian calls, everyone else folds.

Turn: 5d (Pot ~110)

Hero checks, Villian checks.

River: 10h (Pot ~110)

Hero bets 70, Villian pushes...so you call?

Villian is very aggressive, and i haven't really figured out his betting patterns yet.

This situation always confuses me against aggressive opponents. Normally I just try to assign a hand range quickly and figure out the percentage of time i think he bluffs or overplays a hand. But at the time I really hadn't figured this guy out yet; I had no instincts at all in this hand.