As hard as it is to see someone you care about die, Henry's choice was completely selfish. He didn't ask Merize's opinion on what he wanted and chose for her. If they made you forget the thing you care about most just to save your life, it would be the most horrendous thing they could do to you. Because they deprived you of the thing that made you happiest, and Merize would surely have preferred to die to spend her last moments with Ameri rather than be forced to forget about having a husband and daughter!
I'm always ready for fights in the comment and I don't give a sh*t if you don't like my opinion