So exh moved out in March. All perfectly amicable and we agreed that, for now, we would share weekends but that our two ds's (aged 6 & 3) wouldn't stay at his until they were both ready which ds2 had not been. Ex had also been coming to ours for bath time once or twice a week etc. Today he had them and I went up to his flat at around 4pm to bring them home with me as usual. However they both told me they had decided they wanted to stay the night tonight. Of course, it was what they wanted and I agreed. Now I am home alone (aside from my lovely and very ancient dog who seems unwell tonight) feeling somewhat bereft and very very sad and lonely. Aside from rather plentiful hospital visits with ds2 (and a night in hospital for tonsillectomy with ds1) I have never spent the night apart from my boys and had wanted it to be planned in advance so that I could see a friend (I rarely get to go out at night due to cost of babysitters etc) Of course it was too last minute to make any arrangements and my couple of closest friends are both away so no one to even cry to on the phone as I don't want to disturb them 
Just wanted to get that out and perhaps hear that it might get easier one day 