What the Pope actually said, "In any case, precisely to avoid any form of confusion or scandal, when the prayer of blessing is requested by a couple in an irregular situation, even though it is expressed outside the rites prescribed by the liturgical books, this blessing should never be imparted in concurrence with the ceremonies of a civil union, and not even in connection with them. Nor can it be performed with any clothing, gestures, or words that are proper to a wedding.The same applies when the blessing is requested by a same-sex couple."
The Pope says you can't. All that was authorized are things like blessings on groups who visit a shrine, which has always been the case and never had anything to do with their romantic attachments.
52fighters