In Fits.

The start

seeing

noticing

talking

flirting

friendship

lust

sex

love

trust

The relationship

trust

sex

love

support

compatibility

complacency

ennui

questions

regrets

The decisions

disagreements

betrayal

anger

arguments

fights

threats

tears

compromise

counseling

separating

praying

choices

The end

together

apart

resigned

accepting

hopeful

dismissive

optimistic

pessimistic

loving

trusting

hoping

Death.