Nothing can be more difficult and trying than to be in a love triangle.
The same is true for our parrots. In reverse, in homes where one human is the object of intention between the parrots, there can be wars of jealousy, rage and dominance. But the silver lining to this is that peaceful accords can be worked out, IF the pet human is awake to the issues and methodically works with the birds. I can attest to that as I've been helping Merlin Tewillager and Sweet Pea learn to get along for the past few years. Like an only child, Merlin Tewillager had had my complete attention for the first three years of her life.