First hand of the heads up match, second place gets paid $910, first place gets paid $1,450. I had the deal button clicked since final three, when i was the short stack, everyone was short since the blinds were so big, but I was shortest. On the first hand of heads up I was faced with that shove, I quickly checked the deal button and I was alone with the request, so i quickly called thinking to myself this hand is too strong in this scenario to fold. After I called I saw the remaining player had clicked the deal button.

Is it make a mistake by calling with this hand overall? Information on villian is that he is a reg of some sort, (classifying him this way because I had over 1.2k hands on him, and the statistics were looking somewhat standard). What about when the deal button gets clicked, then is it a standard fold?