Gene Robinson, the first openly gay bishop of the Episcopal Church, announced Sunday that he and his partner of over 25 years are getting divorced.

Robinson and Mark Andrews exchanged vows in 2010 after New Hampshire legalized same-sex marriage.

The 66-year-old Robinson retired last year from the Diocese of New Hampshire after serving 9 years as bishop.

“Recently, my partner and husband of 25-plus years and I decided to get divorced,” Robinson wrote in a The Daily Beast op-ed. “While the details of our situation will remain appropriately private, I am seeking to be as open and honest in the midst of this decision as I have been in other dramatic moments of my life – coming out in 1986, falling in love, and accepting the challenge of becoming Christendom's first openly gay priest to be elected a Bishop in the historic succession of bishops stretching back to the apostles.”

Robinson, who has written several books on the subject of marriage equality, addressed divorce from the context of an equality advocate.

“It is at least a small comfort to me to know that like any marriage, gay and lesbian couples are subject to the same complications and hardships that afflict marriages between heterosexual couples,” he wrote.

(Related: Obama selects Gene Robinson to deliver Easter prayer.)