( NL16) weak flush facing river shove

Without knowing what history you have with this player if any and what his stats are its hard to say if this was a good play or not, that said though i do like how you managed to find the fold button

I feel like the SB would have bet the flush himself on the river after the turn checked through but this is a tough spot. The huge sizing seems like the nut flush or a that missed and is being turned into a bluff or something with the A♦: like A♦:::Tx:. Have you seen this player bluff in a spot like this before?

I would snap call this brainless ape without info we should win 99%+ of the time:) triple x /shove come on. He should never have nuts at the 1st place with this line!