I thought that even tho you weren't CLOSE, you WERE very confident that your MIL would be supportive of the marriage.

Allen may disagree, but I've always been of the "ONLY expose to those whom you're ALMOST CERTAIN that they will support your marriage" school.

Otherwise, the downside of "tipping your hand" ahead of confronting your wife wouldn't even be offset by the pro-marriage support.

Puppy