I told my wife ... that I was looking around for something else, possibly not in Houston, and she replied back with something that sounded suspiciously like a candy-coated version of a word that starts in "di" and ends in "vorce".
Far be it from me to offer relationship advice, but I'mma do it anyway.
If I were in that situation with my wife (ie, since you two are totally different people this totally applies, right?) then it would be because:
* We aren't communicating well enough
* She's seeking reassurance that she is still the most important thing in my life
* She wants me to stop dillying around and fix the current situation (figure out how to get the family back together, lighten her load, etc)
* "The grass is always greener" - even if I told her otherwise, she would still be wondering if I'm having a better time than her, stuck with all the kids (although in my case, with 6 kids, she might have a point...)
I would literally drop everything and drive home so she could slap me in the face and we could hash things out. Just making sure she knows that she's #1, and that I'd work in a pig slaughterhouse 16 hours a day if I had to in order to keep her happy will reassure her, and I've found that as long as I make sure she's happy, she makes sure I'm happy and everything usually works out to my advantage even better than if I had chosen the route myself.
You guys are in a tough situation. The first order of business is probably to get on the same page, and if needed rekindle your relationship with each other and your kids. The second thing to do is get back together. Drag the family out to you, rent out or mothball the old home, and start figuring out what the next step is - or quit your job, move back with them, and go through the job search struggle. Yes, it would cause financial difficulties, and pulling the kids out of school and moving them around isn't fun, but it's better than the alternative, which looks like it might be losing your family.
If it were my wife, she would fight me on these things, and put practical matters (money, school, job, etc) ahead of the relationship - and I'd have to push back. If I let go on these points then she would assume that I'm not willing to "fight" for our relationship.
Decide what's most important - make a list if you have to - and
make it happen.
The worst thing you can do right now is get depressed about it and give up or give in. Decide what you want, and go get it. It looks like she's going to be quite passive about it, and like many divorces, "We just kind of drifted apart" - well, if you don't row your boat toward her, then of course you're going to drift apart - that's the nature of life. You will have to take the lead, and you aren't going to be able to do that if you stew by your lonely self in the hotel.
Drive home tonight. Don't put it off.