HH is a bit messed up because PT could not read seat of villain.

My turn bet is a bit weak but I have the nuts here ( I think ) and anything but a FD and an A will fold imo. thoughts?
On the river villain raises me to $13,50. I kinda hate my riverbet but a lot of vibes tell me I am really fckd. ( come to think of it i really thought I betted more )

$0.25/$0.5 No Limit Holdem
4 players
Converted at

Stacks:
CO ($33.72)
BTN ($170.90)
Hero ($111.53)
BB ($60.29)

Pre-flop: ($0.75, 4 players) Hero is SB [7d]
2 folds, Hero calls $1.75, BB calls $1.5

Flop: [7h][Ah] ($4, 2 players)
Hero bets $3, 1 fold, tnose23 calls $3

Turn: ($10, 1 players)
Hero bets $6, tnose23 calls $6

River: ($22, 1 players)
[color=#cc0000][b]Hero bets $6

Obv I did not know what to do at the river as I was affraid to be bluffed of my hand if he would go big on me here.

I folded.

Chat;

Villain; what did you have?
moi; You first
V ;KQ
Moi; No you did not !
2 minutes silence
V; well what did you have
M; I had a boat
V; You flopped trips?
Moi; Not gonna give you more info unless you tell me your real hand
V ; I had AJ

I believed him

I check shove the turn. He is like never not betting an ace here. When that river comes, we have very little information about his hand, and I check fold the river always. No way he is simply repping a fourth ace, EVER.