Palimony is the term used to describe these payments. The 1976 court case Marvin v. Marvin, in which the court ruled that financial agreements between unmarried partners were enforceable, gave rise to the term “palimony,” which is a combination of the words “pal” and “alimony.” The term was coined as a result of this decision.

Because not all states recognize it, it is determined state-by-state when and how much can be paid in alimony.

https://youtu.be/m_BL8fnl2qI