Charles Ellicott Commentary Genesis 16:5

"And Sarai said unto Abram, My wrong be upon thee: I gave my handmaid into they bosom; and when she saw that she had conceived, I was despised in her eyes: Jehovah judge between me and thee." — Genesis 16:5 (ASV)

My wrong be upon thee. —That is, May the wrong done to me be avenged upon you. Sarai’s act had been one of self-denial for Abram’s sake, and now that it has led to her being treated insolently she makes Abram answerable for it.