Well my husband tells me, along with several others here, that the first two lines are Caro Mio Ben. He also tells me that I sang it a few years ago. I can't remember singing it but at the moment I am desperate for sleep so I could be wrong or he's thinking of another woman. Anyway here are the words to Caro Mio Ben. Perhaps some other song borrowed the first two lines.by Giuseppe Giordani* (1744-1798)
Caro mio ben, credimi almen, senza di te languisce il cor, caro mio ben, senza di te languisce il cor.
Il tuo fedel so spira ognor. Cessa, crudel, tanto rigor! Cessa, crudel, tanto rigor, tanto rigor!
Caro mio ben credimi almen, senza di te languisce il cor,
caro mio ben credimi almen, senza di te languisce il cor.
*There is evidence that the piece was actually composed by _Tommaso_ Giordani (no relation). A 1782 collection lists only the last name, and someone may have selected the wrong composer.