Odessa

caribou's talking about his former girl...who is currently with somone else however, in that newer relation she is miserable, hence...

"Saving up to, the day when she goes The day that she stands up for everything that she chose"

she was prob coerced by others to leave the former guy and be in an entirely new relationship, but...

he is saving up the memories and more until she decides to end the current and go back to her true love.