The lines "I am the one you will call when alone, I am the one who will give when she's gone" and "hoping you will love me back" makes me think more of "My Best Friend's Wedding" ie. it is about unrequited love, loves the guy but to him she is just a friend.
The lines "I am the one you will call when alone, I am the one who will give when she's gone" and "hoping you will love me back" makes me think more of "My Best Friend's Wedding" ie. it is about unrequited love, loves the guy but to him she is just a friend.