she went to Italy to live with Algarotti. (And we know how that turned out.)

If you joined salon recently and you don't actually know how that turned out, we have in rheinsberg a summary of Algarotti's life, and a summary/paraphrase of Lady Mary's letters to him, in all their painfully unrequited love. You will see what Selena means by her last sentence. :(

The good news is that even without Algarotti, she liked Italy enough to spend the rest of her life there, until her husband died and she came back to England, then died herself there a year later.