completetly lost on a river check raise by nationz

[OnceUpon]

Tough spot. You played it pretty deceptivley. I think you have to call. It's possible he rivered a 2 outer, but as deceptive as you played it, it kinda looks like you're full of it.

However, if I'm 18/12 and UTG. I think I play AA, or KK the exact same way as he does.

Weird spot, I'd be interested to hear other opinions.

OP, what is your image? How does villian view you?