Villan is a decent player. Should I be calling the river in the hand below?

I only make it to showdown about 15% of the time and win at showdown about 56%.

I think the possible reasons are:
1. Playing overaggressively my big hands
2. Playing overaggressively my ok hands
3. Getting bluffed or pushed out of a lot of pots
4. Have a tight image, people are folding

What do u guys think of this hand and the reasons for low showdown percentage?



Party Poker (10 handed)

Preflop: Hero is Button with , .
8 folds.
Hero Raises $7. BB Calls $7.

Flop: , , (2 players)
BB checks. Hero bets $15. BB Calls $15.

Turn: (2 players)
BB checks, Hero checks.

River: (2 players)
BB Bets $20. Hero folds.

Final Pot:

Hell no that's not a bad fold... You bet pot w/ middle pair and got called... = he's probably got TOP pair... THEN, the low card paird the turn... I'd be runnin from that hand like a hooker w/ a rash...

Yea you fired at the pot twice and got called both times. Then he senses weakness and fires back on the river. Fold here, if he likes checking/calling sooner or later he'll let you draw out and you can play it the same way. Then check/raise the river.