my boyfriend of almost 2 years is leaving. He and my 3 year old daughter get on really well and I don't know how to handle it. Does he say goodbye, will she understand? Or do I explain after he's left, but will she then feel abandoned? He's been living with us through lockdown so is a big part of her life. I'm probably not thinking very clearly but want to make sure I make things as easy as possible for her. She as at nursery until tonight, please help!