The correct answer to this open question is the following.
The reaction of the Tejanos when the Texans rebelled could be seen as a three-part reaction. First, Tejanos expressed their loyalty to Mexican authorities and the Mexican Constitution. Then, when the conflict increased, they wanted to remain neutral; basically, they did not take sides. In the end, they opted to support Texans.
The Texas Revolution started in October 1835 and ended in April 1836 with a victory of Texans over the Mexican army. The Texans won the famous Battle of San Jacinto, close to Galveston, Texas and that is why they won the War. Mexican President Antonio López de Santana had to recognize the loss.
