Yes, Mexico did resent the annexation of Texas. Texas was a major portion of Mexico's land, so losing Texas was a major financial loss.
Mexico
The annexation of Texas.
Mexico offered to buy Texas from Mexico.
A provocation to start a war, as Mexico had already warned the US that annexation would mean war (it did; and Mexico lost).
The border conflicts between Texas and Mexico were now Intenational Border conflicts between the US and Mexico.
by getting its independence from mexico
Through binoculars.
People were opposed to the annexation of Texas because it would be admitted to the union as a slave state.
It Is Texas, New Mexico, Wyoming, Oklahoma, and Colorado.
Texas (more specifically, the annexation of Texas into the Union).
What was the direct cause of the war with mexico