Legacy of the Forlorn
This +1 ring of protection is part of a special set of two identical rings. At any point, the wearer of one of the rings may transfer all or part of their ring’s AC bonus to the wearer of the other ring. If the rings are worn by two individuals who are married or bound by some sort of oath of love, each ring becomes a +2 ring of protection.
If the wearer of either ring ever intentionally betrays someone he or she truly loves, both rings permanently lose all of their power.