I don't see grounds for Annulment = everyone can check them out and I can't see how Louis would manage that. Yes they were young and had a child already but it appeared to be voluntary. It would be hard to prove mental incompetence on his part as he has gone on to work in a professional capacity. He can't suggest that it was not consummated as a second child was born. And a suggestion that one or both of them did not intend to enter into a long term relationship would be hard to prove as they were together for 10 years.
But I guess MT will try .... that is if she has enough time away from admiring herself
It could also be that Tessy doesn'want or need another church marriage. She does not seem very obsessed with religious beliefs. Concerning Louis and Scarlet we don't know how important a religious marriage is for them.
I cannot imagine that MT will try such a long and difficult procedure, I can imagine that she is simply glad that Louis is getting married again, to a woman which she obviously is accepting .
I remember the anulment of Caroline of Monaco many years ago. It was difficult, but the situation was very different: she being so young, him so much older, fortunately no children.
I have a cousin who worked for years (in the 1980's, like Caroline) to get her husband's first marriage annulled. It dragged on for at least 10 years. It was very hard on my cousin, who felt terrible about "living in sin" without the Catholic blessing on their marriage. Then, when the old monsignor in the parish finally retired, it moved like melted butter. It turned out that the old buzzard had sat on a lot of annulment applications and simply hadn't submitted documents. Whether it was maliciously done, or from simple laziness (my cousin never received a clear answer), he caused a lot of people a lot of heartache.