She did. She also told him, when he came home for time with his mother, that it was so wonderful that he had forgiven her, and when he told her point-blank that he hadn't, said nastily that in that case he was lying to Jennifer, and threatened to make a stink about it. So he told her to get stuffed.
At a later date she decided to ru(i)n his life for him and engineered his estrangement from Julianne. Since this is the only engineering she's done since she took her degree, we probably ought not to find it as disgusting as I did.