She then suggested that the festive season was "a day that you don’t focus on you, [when] you focus [instead] on the joy you can bring others."Chloe had always enjoyed a close relationship with her mum, even posting video footage in the past of the pair singing together.Australian-born Olivia was originally diagnosed with breast cancer 30 years prior to her death, but underwent a partial mastectomy to keep the disease at bay.After years when it looked as though she was in remission, her cancer then returned in 2013, and by 2017 it had become metastatic, meaning it had begun to spread to other areas of her body.Chloe was devastated, having written in a poignant post published just three days before Olivia's death back in August that she had "worshipped" her mother.Describing her as her "best friend", she'd quoted some of her favourite words on the experience of bereavement, originally penned by Dr Who writer Jamie Anderson."Grief, I've learned, is really just love. It's all the love you want to give but cannot," she quoted."All that unspent love gathers up in the corners of your eyes, the lump of your throat, and the hollow part of your chest."Finally, the quote added: "Grief is just love with no place to go."The singer also shared yesterday that the love of her husband James Driskill, the man she called her "soulmate", was helping her through the dark times."Thank you for giving me the greatest present….