Spoused

[Vania]

When a friend cancels plans or stands you up and then later blames it on his/her significant other. Note, however, that in [actuality], it might just be your friend being a prick and looking for someone to take the blame. Formerly [wifed], but extended for todays [sexist] society.

[Becky]

Married, wedded; joined in marriage; given as a spouse (literal and figurative).