Line check please

Not much history with villain, seems okay but not great. About a 20/10 guy. River comments especially welcome. I didn't think he was chasing, hence the river push.....how bad is that push?

FullTiltPoker Game #1728963812: Table Brush - $0.50/$1 - No Limit Hold'em - 22:46:17 ET - 2007/02/03
Seat 1: ilduce222 ($65.65), is sitting out
Seat 2: gcmy888 ($100.90)
Seat 3: shut_it_up ($38.95)
Seat 4: Whls71 ($36)
Seat 5: cardsman1992 ($114.65)
Seat 6: HighcardV ($101.40)
Seat 7: FireDan ($115.55)
Seat 8: Rutigar ($75.95)
Seat 9: jc544 ($119.75)
jc544 posts the small blind of $0.50
gcmy888 posts the big blind of $1
The button is in seat #8
*** HOLE CARDS ***
Dealt to cardsman1992 [Ac Qc]
shut_it_up folds
Whls71 folds
cardsman1992 raises to $4
HighcardV has 15 seconds left to act
HighcardV calls $4
FireDan folds
Rutigar calls $4
jc544 calls $3.50
gcmy888 folds
*** FLOP *** [8s Qd Ad]
jc544 checks
cardsman1992 bets $12
HighcardV calls $12
Rutigar folds
jc544 folds
*** TURN *** [8s Qd Ad] [5c]
cardsman1992 bets $30
HighcardV has 15 seconds left to act
HighcardV calls $30
*** RIVER *** [8s Qd Ad 5c] [Kd]
cardsman1992 bets $68.65, and is all in
HighcardV: jesus
HighcardV has 15 seconds left to act
HighcardV calls $55.40, and is all in
Uncalled bet of $13.25 returned to cardsman1992
*** SHOW DOWN ***
cardsman1992 shows [Ac Qc] (two pair, Aces and Queens)
HighcardV shows [8d 8c] (three of a kind, Eights)
HighcardV wins the pot ($208.80) with three of a kind, Eights
*** SUMMARY ***
Total pot $211.80 | Rake $3
Board: [8s Qd Ad 5c Kd]
Seat 1: ilduce222 is sitting out
Seat 2: gcmy888 (big blind) folded before the Flop
Seat 3: shut_it_up didn't bet (folded)
Seat 4: Whls71 didn't bet (folded)
Seat 5: cardsman1992 showed [Ac Qc] and lost with two pair, Aces and Queens
Seat 6: HighcardV showed [8d 8c] and won ($208.80) with three of a kind, Eights
Seat 7: FireDan didn't bet (folded)
Seat 8: Rutigar (button) folded on the Flop
Seat 9: jc544 (small blind) folded on the Flop

Why don't you think he's chasing? I put him on a diamond draw, ace worse kicker, maybe AK or something kooky like Q8 or a slow-played 88. If he's on the diamond draw or has AJ/AT (the most likely hands, imo) the push is terrible b/c you're getting called by better hands and folding worse hands. If he has something weird like AK/Q8/88, then the push is better b/c he might fold a better hand when the flush hits. BUT, given he's been calling and not raising, I'd assume he's a station and isn't folding anything but AJ or worse here.

I like c/c river I think, maaaybe c/f to a push, but he has ~1/2 pot behind, so probably not.

I put him on: AJ or worse first, then Q8, then maybe QK. The call of the large turn bet made me think he wasn't chasing a flush or that he didn't have JT and was trying to fill an inside straight. The lack of a raise on the drawy board made me discount a set.

I think my river push was bad because there isn't any way he could put me on really strong hands like a straight (he can't think I raise JT preflop) or a flush (what two diamond cards would I have open raised in EP that would have made the diamond draw possible for me?). My only hope was that he had one pair/two pair and was afraid of a set. He said in the chat that he was very afraid, but made the hero call anyway. He said that my lack of caring for the river told him two pair.

you get stacked here with Top two so nh.