All's fair in love and streaming: R&B singer Kehlani lit up social media over the weekend with a livid track detailing an apparent break-up with rapper YG.

She dropped the new song "Valentine's Day (Shameful)" that alleges cheating just days after releasing a different collaboration with her on again-off again flame entitled "Konclusions," which painted a much rosier picture of their relationship that they had confirmed began last fall.

The latest song is a laundry list detailing the missteps of a partner -- likely YG -- along with lines about addiction issues. "I'd say your name but you don't deserve recognition (Nah) / You played the hero but you really are the villain," Kehlani, 24, sings in "Valentine's Day."

"There ain't a bone in me that wants to spare your feelings (Ah) / You called me crazy, but it was my intuition."

In a now deleted tweet the California singer -- who gained fame for her Grammy-nominated mixtape "You Should Be Here" -- had replied to a fan telling her to leave YG saying that "i'm single luv."

In the new song Kehlani confesses to checking YG's phone and alleges infidelity: "Fly to France, wine and crackers, honeymoonin' with the bitch."

Kehlani released her debut studio album "SweetSexySavage" in January 2017, and more recently lent her vocals to a Justin Bieber track on the pop sensation's latest record.

Rapper YG's hits include "Who Do You Love?", which features Drake, and "Toot It and Boot It" featuring Ty Dolla Sign.