What you might try is asking this question in one of the Texas Spark Teams. Have you joined any Spark Teams for your area ? that's one way to find a possible workout partner.
Have you considered talking to any of your friends or neighbors ? See if any of them would be interested in joining you ?
This is a list of the different Texas Spark Teams you could join to find a workout partner. www.sparkpeople.com/myspark/groups_search_