Ryan Phillippe's mother SUSAN has spoken out about the shock break-up of her son's marriage to Reese Witherspoon, admitting the split is "devastating". Susan Phillippe refused to speculate on reports her son cheated on his actress wife, but told America's People magazine she's "heartbroken". She says, "Our family is in mourning. We are heartbroken and worried about the children... This is devastating."