What a boring line from SB. I like your fold, you don't beat too much here and it's likely he have a 9 or two pair thinking you will make the betting. I like checking behind on the river since he was drawing to something or made a flush on the turn and that 8 could help him if he was drawing to the straight. I check behind but bet/fold isn't too shabby either.

Btw, isn't this like your third TPTK thread in 1-2 days? Maybe thats a part of your game you need to review. I have no idea since I haven't played with you, I am just wondering.