We don't need anything "too personal". Just his 10 min talking about anything he likes.
This may help her to understand own type. But if she's E-9 indeed, then she's doubtful to risk to understand the real situation. In duality IR there should not be so serious emotional issues as duals stabilize the psyche of them both. Semi-duals do this worse, but as the leading function is F so anyway should be expected lesser depressive issues, except anxiety. In case of bad IR or without functional supporting - she may get what we see. I suspect her husband is not LSE.