Actress Marcia Cross has been left "heart-broken" by her hubby's cancer battle, according to her mom. The Desperate Housewives stockbroker husband, Tom Mahoney, is currently receiving treatment for the illness after being diagnosed earlier this year. No other details about his condition have been released, but Cross' mother, Janet, is insisting the star and her partner are determined to beat the disease. She tells Britain's Closer magazine, "It's heart-breaking to see Tom so ill -- he's got a big battle ahead of him. It just breaks my heart that they have only just found each other fairly recently, and he might not be around to watch his kids grow up. "They are the most romantic pair too. I just hope Tom gets better, so they can have a normal life again. His chemotherapy has been so grueling and it's been tough but they're in love and doing the best they can."