Theory that Sigyn (Loki’s wife) does exist in the MCU we just don’t see her

It’s theory time let’s go let me know if you think it adds up:

So briefly some background cuz it happens in comics from the 70’s and ain’t nobody got time for that— Loki has Sigyn’s husband-to-be killed and then disguises himself as the now dead fiancée and goes through with the wedding before revealing himself as Loki after the ceremony is finished. Odin is mad af but Sigyn is like actually he’s my husband so I’m duty-bound to him now. Odin is like “damn you’re really gonna put up with Loki? Props to you.” Then he makes her the goddess of fidelity. Likely as per mythology but I’m focusing just on Marvel.

So anyway Sigyn sticks by Loki’s side throughout the comics but suddenly disappears after the Ragnarok event in Thor II. We assume she died.

So bringing that over to the MCU…

Ragnarok happens obviously there’s a whole movie on it but Sigyn is never mentioned or shown in the movies. Possibly because the movies always follow Thor and not Loki. And I know the movies are hardly detail for detail to the comics and I wouldn’t say this if I didn’t have another piece of evidence but I’m gonna make the claim that Sigyn dies in Ragnarok the movie like we can assume she died in the comics.

This isn’t the ‘another piece of evidence’ I mentioned before but take a look: Loki gets significantly softer in general after the Ragnarok event. He’s on the ship with every last Asgardian and has probably seen that Sigyn isn’t there. He doesn’t outwardly grieve because he’s Loki but the sadness does soften him up enough that we get that ‘I’m here’ scene with Thor and a little smile.

Now here’s my evidence that in the MCU Loki and Sigyn were married and she did die in Ragnarok however circumstantial it might be. Anyway. Loki specifically uses the word fidelity when talking to Thanos and I know that’s just a fancy word and Asgardians talk fancy but still if all of The Hounds Of Baskerville (Sherlock) can be based off of the fact that this guy said hound instead of dog or wolf or something then I can use this wording as solid evidence. Especially since Loki is known to choose his words carefully and deliberately. He emphasises “undying fidelity” both as a signal to Thor than he doesn’t plan on dying right then and for himself in memory of Sigyn, the goddess of fidelity, who had died no more than an hour previous.

I rest my case.