I passed, thinking that as I had seen Simon's earlier performance he hads to be beating Jacks this time
In fact Mikky T is correct....by giving me the speech play Simon changed my mind...I was convinced it was a squeeze play to get me to fold and to get him HU with the short stack who he thought he was beating
then he gave me the "you have to pass jacks" routine and I talked myself out of it. 30 minutes earlier I witnessed the previous speechplay and I thought he knew I would not fall for the same trick so it had to be a double bluff
I passed
Idiot
The short stack had

Simon had

I was ahead, or would have been
we both got the short stack wrong
When an Ace fell on the turn I was extremely relieved, but I still made the wrong play