I think my flaw was not doing a best hand review. I never even put him on the possibility of JJ which is a major problem. But I thought i had a great slowplaying hand. I didn't want him to think i had a ten. When I caught the straight on the river, I thought I was even better. He may put me on a ten but not 9 10. Overall it was a case of bad luck. I had to call the river no matter what, any bet at any time I was dead.