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.
After Texas gaining their independence from Mexico. Texas asked the US to annex them thus entering the union as a slave state.
Texas did.
They were considered to be land grabs to achieve Manifest Destiny.
Probably land.
Thousands of Americans settled in Texas.
The United States didn't gain any land during the Texas War of independence. It annexed Texas after it had won its independence and was a free nation.
They had to go into war with Mexico to get the land.
chickens
Cheap land.
no
Texas had a large landmass that land hungry Americans saw as beneficial. Many Americans moved to Texas as America was moving west. At first, the Mexicans appreciated the immigration, but it was not long before Americans decided that Texas should be free of Mexico.