After a bit of advice here. My mum has been with her partner nearly 9 years and it was a brilliant relationship, her partner is seen as one of the family and an extra grandad to my kids (5 and 3). For a while things have changed and he's become quite withdrawn and nasty, he's made it clear he wants to end the relationship and that's what is happening. I have no idea how to explain it to the kids, they love him and although they'll get over it I don't know how to make them feel ok about never seeing him again. We don't live near them so it can be a clean split in many ways.