The idiom "been there, done that" is used to acknowledge that one has done or experienced something before, but in this sentence he has never experienced this before
Context: He shrugs and gives me a look that tells me he's never experienced this before but doesn't say so.
Hypothesis: He shrugs and gives me a look that tells me he's been there, done that but doesn't say so.

Given this context, is the hypothesis true (Yes/No/I don't know)?