FWIW -- I'm looking through JR's fb pictures, and there are tons of pics from this summer (2012) in which she and GR banter back and forth. He comments on her pics, or she tags him in something silly. It all seems very playful and flirty, and like they're in equal standing with each other (as opposed to her being afraid of him, or him being overbearing and controlling, or anything of that nature). It's just about every single picture, this back-and-forth between them. Going all the way back through the Spring of 2012, which is as far as I've gotten.
Hmmmm, I dunno. I'm not getting any bad vibes on him from looking through the pics, and their comments to each other. I see several times when he's very supportive and encouraging, telling her she doesn't give herself enough credit on her artwork, etc. All very positive stuff. This is the first time I've really looked through a lot of it. And I gotta say, at this moment, after reading through it all... I'm just not feeling like he did anything! I don't know what went wrong in their marriage, or when, enough that they'd have been discussing divorce... but through at least the summer of '12, it appears that they were very friendly and loving with one another.
He's definitely made some stupid comments since she's been missing. But maybe that's all it is.... stupid and awkward, knowing that he's under the glare of suspicion and being watched and analyzed.
Maybe she had a Tiffany Tehan moment and ran off to be with some guy, and now is too embarrassed or ashamed or afraid to call someone and say, hey, I'm okay, because she KNOWS she'll be judged harshly for abandoning her kids and friends and family and causing everyone to worry. Since this isn't national news, perhaps she could be with some guy who is mostly unaware that she's considered missing.
Maybe she did lose the weight, start feeling better about herself, and get caught up in some new guy who blew in her ear and made her feel even better. It would be a new feeling, if she's struggled with weight in the past, and she may get some "high" from it that she doesn't want to let go of. Maybe she knows 100% that the kids will be taken care of with GR, and so while she might miss them, she knows they're fine (which would, of course, be extremely selfish on her part - but maybe she's justified it in her own mind, so that she may go off and chase this euphoric feeling of having some new guy fawn all over her.
I think it's entirely possible.