The troubled marriage of Nicholas Tse Ting-fung and Cecilia Cheung Pak-chi has more plot twists than a prime-time television soap opera. The celebrity couple, both scheduled to return home today after working on different films overseas, will reportedly make a decision on whether to end their five-year marriage. Tse's model-turned-actress sister Jennifer Tse Ting-ting was swamped by reporters looking for insider news on Wednesday when she appeared as guest of honour at the launch of Asia Jet's new aircraft, the Cessna Citation XLS+. Promoting the private jet, she said the six-seater plane would be perfect for travelling with the family. But family fun was probably the last thing on her mind. 'Divorce is not an easy decision. You are not going to be in a great mood if there's a divorce pending in your family,' she said. Tse said she felt for her mother, Deborah Lee. 'People have blamed her for [Nicholas and Cecilia's] marriage issues. I think she's been wronged by others,' she said. 'She really misses her two grandchildren because she hasn't seen them for months.' Jennifer admitted that Lee was upset, and had even seen her crying. 'I think she could take good care of Quintus and Lucas. She did it before when Cecilia was busy filming and left Quintus at my mum's home for two months,' she said. 'They had such a great time together. My mum turned her living room into a baby's room.'