sounds to me like the narrator(whether it really is Nate, or just his muse) was betrayed by their partner, and they have to "hold their pride" and try to love their partner the same as before they betrayed him.
sifting seasons through the sun
spitting treason into your hand
that line states somewhat clearly that basically "over time, they betrayed Nates/the Narrator's trust in them"
sounds to me like the narrator(whether it really is Nate, or just his muse) was betrayed by their partner, and they have to "hold their pride" and try to love their partner the same as before they betrayed him.
sifting seasons through the sun spitting treason into your hand
that line states somewhat clearly that basically "over time, they betrayed Nates/the Narrator's trust in them"