Students petition to have gay teacher rehired at Catholic high school in Columbus.

Her lesbian relationship appeared in a public way--the newspaper.   I'm sure the school authorities knew, and there was a tacit agreement about her not announcing her relationship which she apparently did in her mother's obituary by announcing her partner as a survivor. There are thousands and thousands of Protestant churches that have no over site except the local congregation, no magisterium and no pope (except the one in the mirror). Where 2 or 3 are gathered, they create a new church to fit their private interpretation of scripture. 

If all those students signed the petition, then their parents have wasted a lot of money on private school tuition, or the school has done some very poor religious instruction. Remove the nature of the firing and replace it with something else the church teaches, such as denying the sacraments,  or the real presence in the Eucharist, or teaching birth control methods in health class. Would she be on staff?

This happened with the ELCA.  Lesbians were ordained as pastors decades ago with the agreement they would remain celibate.  They changed their minds and ripped the church apart for 2 decades, ending in a split and the formation of a new synod. Essentially, they said scripture and church rules didn’t matter, only their private interpretation. Over the years, each proposal and compromise failed, until finally, a few years ago, the gay lobby won and the synod split.  http://www.nbc4i.com/story/22006466/bishop-watterson-pe-teacher-talks-to-nbc4-after-dismissal