I dont mind your line Pre flop and flop, on the turn you could bet bigger to charge more for draws with what you feel is the best hand still.  I am fine with the check on the river.  str8 draw got there and he might have played 2 pair like that.  the only hands you beat are AQ, AJ, and A7 or worse.  or flush draws.  the question is IMO if to call the river or not, and I would do that based on his post flop aggression history, you have 120 hands so you must have had the chance to see how he played other spots post flop.

I dont see how else you can play it and lose less, but at the expense of being called a station   it might have been worth the call if he had been active post flop.

I'm usually betting this river, theres some draws that missed and theres still worse aces in his range,  If im checking the river, its because  im check calling and checking to give him a chance to bet his missed diamonds whereas he would just fold otherwise if I lead out. Betting even makes your hand easier to play becuase they if you get reraised you may beable to eliminate AJ and AQ but in this spot those are still hands he could be value betting river. Check calling is ok to keep pot small so you dont get raised off the best hand, but I dont think check/folding there is best play.

Bet flop, bet turn, bet river > bet flop, bet turn, check CALL river

Why are you folding this river? The only hand that got there was QJ.

He SHOLD be raising any 2 pair hands or sets on the turn hoping for you to get it in with your AK AQ before the board turns scary on riv and while all draws are still live (incase you have suited connectors). So I think he has AT A9 or sets here rarely.

I LOVE the check on the river allowing villain to barrel his missed flush draws or his ‘two pair draws’. For the same reason I HATE the fold.

Ya only big mistake here was chk/folding river.  I think I play it the same maybe bet a tiny bit more on turn and I'm always calling the river here.