@KM...
I dont get why you're saying he was smiling. I am not seeing it. He started the fight off by cutting Banners throat...
https://www.turboimagehost.com/p/39287307/Screenshot_20180905-200550.jpg.html
Hulk gets up and wreck him and again, I'm not seeing a smile...
https://www.turboimagehost.com/p/39287308/Screenshot_20180905-200605.jpg.html
https://www.turboimagehost.com/p/39287309/Screenshot_20180905-200628.jpg.html
The ONLY time he gained an advantage was when Hulk knew who he was fighting. By the end of it, nothing was ever shown with Hulk wanting to kill him. If he wanted him dead, he wouldve did it at the end.