defined.

un·re·quit·ed /ˌʌnrɪˈkwaɪtɪd/ Pronunciation Key - Show Spelled Pronunciation[uhn-ri-kwahy-tid]
–adjective

1. not returned or reciprocated: unrequited love.
2. not avenged or retaliated: an unrequited wrong.
3. not repaid or satisfied.

"she calls him early because she knows he'll be asleep
she leaves a message after the beep
she says she's better now but she's still incomplete
she's trying hard to make her voice sound soft and sweet

would he, could he been thinking of me all along?
and if faster, would he tell me the truth?
cause it's a long way down when your
hopes are high as mountains
and I am worried that I'm falling for you..."