Frank genuinely smiling because of Karen.
man, i don't even know what to do with kenny omega man; first he and kota slaughter us with their undying love. now, he riling the shit out of okada and making mr. stoic mcsparkles FEEL things like anger, disgust, irritation and maybe, just MAYBE some grudging admiration and respect. all while kenny just sort of flirts with him in his weirdo passive-aggressive way he did with kota. he's moving on in the most masochistic way possible, i think, although that title's a nice bonus as well.