Texas Family Law Code website: http://tlo2.tlc.state.tx.us/statutes/fa.toc.htm
Spousal support is applicable in long term marriages. A marriage is considered "long term" at/around the 10 year mark.
You might look into abandonment as an option. I don't have much experience with this, but I've found Texas Family Law to be fairly clear on definitions of such.
Do your homework... dig into the Family Law Code, and realize that what feels like panic right this moment is probably a fear of the unknown than a reason to truly panic. The time spent reading up and familiarizing yourself with Texas Family Law will also expedite conversations you might have with an attorney because you've come into the initial consultation PREPARED.
Based on your post (there's always more than one side to a story), you don't have much to worry over....