Sister Wives questions

I am a first time watcher, I know most spoiler. I’m a little confused on some things after watching the tell all.

1. What was the things the catfisher was releasing online, why is Leon so upset with Meri I just don’t really understand that. HOW did not one person notice how much weight she was losing???

2. Is no one else judging how fast mykelti and tony are moving? I know they’re still married I’m just like holy crap this is too fast I never really understood why Kody would give his permission…

3. Is season 10 the start of the downfall???