You may have just handed us the inside of a case we’ve been building from the outside for a year.

Then, a moment later:

Listen to me carefully.

Do NOT confront him.

Do not change how you behave.

Do not let either of them see that anything is different.

People like your husband move money and burn evidence within hours of feeling the ground shift.

The single most useful thing you can do right now is act completely normal until you are back on US soil.