At the end of Act 3:

A. Elizabeth admits her husband cheated
B. Martha Cory burned alive
C. Abigail admits her lies
D. Giles and Proctor are arrested

it ends with a marriage, but also with prospero giving up his power.

the tempest is a play written by william shakespeare between 1610-1611, it narrates the story of prospero a magician that sets a storm to wreck a ship, this sets the story to kill the king of naples. while it is a romantic style play, it isn´t traditional because of the ending, it end with the marriage and the magician giving up his powers.