I think this song basically represents the realization of "enough is enough" - that is, somebody realizing that 'moving up' may not be what's best for them. So instead of 'moving up' and being unhappy with the costs of doing so, they 'move out' and get out of the situation; they make things better for themselves. This song represents a person deciding that "hey, this isn't going to work for me, and this isn't worth it - I'm getting out of this situation and giving myself a better life."
I think this song basically represents the realization of "enough is enough" - that is, somebody realizing that 'moving up' may not be what's best for them. So instead of 'moving up' and being unhappy with the costs of doing so, they 'move out' and get out of the situation; they make things better for themselves. This song represents a person deciding that "hey, this isn't going to work for me, and this isn't worth it - I'm getting out of this situation and giving myself a better life."