He saw them as an invading force.
He said no and killed moctezuma
yes, after the Pueblo Revolt drives them out.
Leave? Spaniards didn't leave Aztecs alone; they conquered them and utterly destroyed their civilization.
the Aztecs gave it to him .
When Moctezuma offered Cortes gold to get him to leave, Cortes saw an opportunity to exploit the Aztec ruler's weakness and decided to stay and conquer the Aztec Empire instead. This act of offering gold backfired as it only encouraged Cortes to further exploit Moctezuma's vulnerability and continue his campaign of conquest.
They used bribes to persuade Republicans to leave them alone.
If you mean how long it took for Mexico to win its independence war, the conflict took 11 years of duration (1810 - 1821). If you mean if Spaniards ever leaved Mexico, most of them stayed, becoming part of the criollo population that survives up to this day -- Mexico has a 9-17% of its population of white European descent; also 60-80% of Mexicans are descendants of interracial marriages between Spanish and Native Americans.
2012.
1518.
Tanguy
They don't. European citizens can enter and leave Mexico without additional requirements besides their passport.
Cuba was never a part of Mexico.