The lass coming to her senses isn't really up to you, either. You can't make decisions for other people, without them wanting to make the decisions, themselves. That includes that M word that involves rings and licenses and other things, that friends and family often can't prevent. Simply have to live with it and tolerate it.
Simply put: It's likely better to make nice again, if possible. It's not worth the further trouble, stirring things up with a friend like that.