Not only is this delusion--let us call it so--ruining his happiness and undermining his strength, but so long as it endures, it also completely excludes the possibility of his feeling for you what you feel for him.
Your own interest coincides exactly with the promptings of real, human charity.

And yours is in reality a charitable nature, dear Unorna, though you are sometimes a little hasty with poor old Keyork.

Good again.

You, being moved by a desire for this man's welfare, most kindly and wisely take steps to cure him of his madness.

The delusion is strong, but your will is stronger.