challenge of learning Torah

"Was Hagar Abused?"

A desperate Sarai gives her handmaiden, Hagar, to Abram to be his wife and have a child on her behalf. When Hagar becomes pregnant, she begins to mock Sarai. Sarai abuses Hagar, and Hagar flees. Is it conceivable that our venerated matriarch Sarai really abused her vulnerable handmaiden, Hagar?