The word hasbian, new to me, has come to my attention.

hasbian – a former lesbian who is now in a heterosexual relationship

Here's a sample usage:

One of the girls in Pi Delt house … went lesbian in grad school, but snapped out of it two years ago. Some of the most happily married women in Manhattan are "hasbians," and you'd never know it to look at them.
– Meg Cabot, Boy Meets Girl

At first, I thought you were referring to what my wife says about my sex life, but that, of course, is hasbeen.

I've also heard LUG, for Lesbian Until Graduation.