I definitely wouldn't have said anything at the wedding, unless it was a spontaneous statement, which wouldn't have happened in this situation. It's more of a after-the-fact, if I dislike this behavior so much as to deliberately ensure that it doesn't happen again, then should I have also said something about it, like "because I don't like this, and don't want to deal with it, we're not traveling together anymore".
I think Lora was always a runaway train. I definitely don't think I could "change" her in the long-term. I know change always had to come within.
But to think about an alternate reality for a second, and to think upon the times that I did see Lora curb her own behavior, because it was a relatively small thing and in her best interest to do so, speaking up in this case could have (in theory) caused her to not pick a "you didn't greet me" fight with Jon, if the consequence was that doing so would stop her and I from traveling together.
I can't remember if I mentioned it here before, but one of Lora's many anxieties is travel. Even her daily commute is (supposedly) a big, draining deal to her, if she has to take public transit. On the days when Jon either wasn't working, or was starting later and/or ending work earlier than her, she ALWAYS asked him to pick her up/drive her around. If we had to go anywhere together, especially if it involved a bus that she's never taken before, or rarely took, she would get REALLY stressed if she had to navigate the bus herself.
So theoretically, in this particular instance, if she knew that a certain behavior was denying her the travel assistance that she wanted, she might have tamped it down, to get what she wanted.
But beyond that, there is a part of ME specifically that says to myself "Liz, if something bothers you this much, you should have said something about it, for YOU", which is the main place where this question comes from. I can talk about what it may have changed within our dynamic. I can wonder if calling Lora on her bullshit behavior more often would have made anything "better". I muse over if maybe - had I not been so lax and so willing to give her the benefit of the doubt - she and I would have stopped living together far sooner, which would have been much less stressful for me, certainly. Those are all things to think about.
But really, it's mainly about me and what would help me to feel happier and like I'm doing the right thing for myself, in the future.