Cheryl Burke is still hurting over having to battle her ex-husband over custody of their dog.Monday's was bittersweet for Burke and her celeb partner, Sam Champion. The pair delivered a fun, memorable dance for Disney+ Night — a paso doble set to «The Greatest Show» from — but ended up getting voted off.Speaking with ET's Denny Directo after the eventful evening, Burke addressed one particularly challenging personal drama that has been weighing on her in recent weeks — fighting over her beloved pup with ex Matthew Lawrence.«Oh, I'm gonna cry,» Burke said, getting emotional when asked about the custody fight, which she's been very open and vocal about in recent weeks. «It's just really sad, you know.»«It sucks because, for me, it's just cruel,» she said.