I don't think your heart is with Mississippi State either.
But, I do live in Austin and have lots of Longhorns fans. And I've never met a Texas fan who has anything bad to say about Nebraska. But Nebraska fans hate Texas. It's a very one-sided hatred. Texas hates the Sooners, always have, always will. I can totally get on board with that, as there is no team I hated more than OU growing up. Better Dead than Sooner Red -- Texas fans are on board with that!
I can relate with UT and their fans. No connection at all with Mississippi State -- other than I'm sick of the SEC.