overpair facing river donkbet

4th orbit or so, so far this person has been somewhat passive/fishy. Ive raised his limps a bunch and he folded pre or on flop.

$0.50/$1 No Limit Holdem
5 players
Converted at weaktight.com

Stacks:
UTG ($102.35)
CO ($103.20)
Hero ($97.60)
SB ($33.35)
BB ($79.00)

Hero is BTN with :Jc: :Jd:

Pre-flop: ($1.50, 5 players)
UTG calls $1, 1 fold, Hero bets $4.50, 2 folds, UTG calls $3.50

Flop: :4d: :5d: :4c: ($10.50, 2 players)
UTG checks, Hero bets $7, UTG calls $7

Turn: :8c: ($24.50, 2 players)
UTG checks, Hero bets $18, UTG calls $18

River: :5h: ($60.50, 2 players)
UTG bets $30

id make my flop and turn bets bigger given reads. riv is tough and is probably a fold vs this guy tho u cant fault a call at 3:1

F*** spot ... I think you are beaten more often then not, but the question is does he bluff here 25% of the time?
I think vs a passive fishy player this is more a fold.

I call because villain seems bad and this could be a blocking bet with lots of worse PP, or an A, or missed draws even sometimes, who knows.

i just always call here vs a fish for this price. its not a delightful spot though.

even though priced in, i think we're clearly beat here