How to tell why a deified relationship will turn to resentment: dependency is baked in. 'If the partner becomes God he can just as easily become the Devil.' The more you need the partner to justify your existence, the more you're bound to them — and the more you'll resent the binding. 'When you confuse personal love and cosmic heroism you are bound to fail in both spheres.' No person can bear being someone else's immortality; the deity always gets resented.

— In our words · Source: The Denial of Death (Ernest Becker)