Just curious how bad this is

[Yoshi63]

Pretty bad, I think! I'm confused about everything in this hand. The pre-flop cold call especially, because it's so simple to just fold this. This flop is a good example of why not to play QToff facing a bet pre-flop. It's pretty messy in that you connected decently, but have no idea where you stand in the hand. I could see an arguement for folding, calling, OR raising this flop as played.

Not sure about turn. His bet seems to eliminate an underpair, I think, so he's probably betting his AQ/set/boat/ect... or else possibly AJ/AT suited diamonds. Might even have JTs, diamonds or not.

River is a very standard call, right? I'm guessing you raised river in hopes that the diamond completed his flush. What else would ever fire into that river that you're beating? Having gone this far we of course don't fold our bottom boat, but raising is silly.