Also, I'd avoid taking De Montfort as a source of official doctrine. I happen to enjoy his Gallic excess, but I like snails too.
The line between official and acceptable doesn't exist.
4 b. Even though Mary was his faithful spouse, God the Holy Spirit willed that his apostles and evangelists should say very little about her and then only as much as was necessary to make Jesus known.
Such wonderings of the imagination could be made about anyone who is named in the bible.