The answers are:
-resented English intervention and aid to the Netherlands
-wanted to return England to the Catholic Church
-wanted to stop English interference with Spain's New World trade
At that time, the netherland empire is a strong competitors for the spanish empire. They both compete in controlling trading routes in south america and south east asia. When Philip II know that Englishmen chose to form alliance with the Netherlands, He felt really resentful and sent his Armada to fight off the British soldiers.