He is just very arrogant.
Before the start of the 2016 campaign, my opinion of Kasich was neutral to positive. However, by the time Trump actually got the nomination, my chances of voting for Kasich were the same as me voting for Hillary. Even after the R convention, Kasich kept digging. I really think he was hoping that the GOPe would wrest the nomination from Trump and give it to him. Or that people would somehow write him in. He is just an a$$.
If Kasich somehow ever gets nominated, I am staying home on election day. He should just switch parties. Glad I don’t live in Ohio.