Actor Ryan Phillippe credits his seven-year-old daughter AVA for helping him get through his break-up with estranged wife Reese Witherspoon. The FLAGS OF OUR FATHERS star and Witherspoon, 30, announced their separation in October (06) after seven years of marriage - and Phillippe has branded the split "the most devastating time in (his) life". Speaking to talk show host Ellen Degeneres, he explains, "Going through something like this, as difficult as it is, my daughter has been the inspiration - my seven-year-old daughter Ava." The star claims she is beyond her years in "conscientiousness and maturity" adding, "I know it sounds pathetic. "I'm a 32-year-old guy, but my seven-year-old daughter is getting me through the toughest time in my life, and that's beautiful too." When asked how his three-year-old son DEACON is handling the divorce, he says, "He's all right, you know. "I mean, three-year-olds. He's fun, every day he says something that makes me laugh, warms my heart. They're hanging in there. It ain't easy. "It's devastating, but the bottom line is the focus on the children, and they're doing amazingly well and that's really all that matters."