All right, I haven’t posted HHs in a while, and I seem to be making up for lost time. Was this a bad fold?

I have $23.30, and SB has around $16. About 5 hands before this he slow played a flopped straight flush. He seems like a solid, if a little loose, player.

I am in CO with KQs.

I raise to .3, SB calls. It is HU

Flop is

I bet .5, he raises to $1. I re-raise to 3.70, he pushes

I fold.

Right after this I left the table. I realized that I took our stack sizes into consideration when I folded, and I think perhaps I was playing above my head.

Would this have been good or bad if we both had just one stack?

Thanks
Dave