Legal Question in Family Law in Texas

You say "I own my house." Is it paid for? Are you still making payments?

If it is completely paid for, then it is "separate property," and you won't have to divide it when you get your divorce.

If you die while you're married to her, she has "widow's homestead rights" in the house even though it's your separate property - she has a life estate, which is the right to occupy the house for the rest of her life (she can't sell it).