Board Thread:Spoilers!/@comment-26225812-20150625072936/@comment-5925413-20170726172750

ChocolatEyes613 wrote: There is no precedent as to what Lady Tremaine's sexuality is, due to her only marrying for social status.

Beside the mere marriages, there's her conceiving two daughters. In the remake, she also leaves the land along with the Grand Duke, and tells Ella earlier in the attic she wed her first husband for love.