I think this song is a man who is with a woman and after being together for a long time he realizes he loves being single! So the typical male he makes excuses that he not loving her the way he wanted to!
He has left for whatever reason. Jail, rehab or perhaps was left alone while she is gone either way he gets a touch of freedom and wants out.
At the end of the day he realizes she's the best of his choices. (poor woman) and stays with her but not wanting to he feels he can't escape her! This could be literal or a metaphor for drugs, jail or being a "star".