Re: So sad
I'm so sorry... this one stinks. My daughters both lived abroad for a few years and I know exactly what you mean.
All I can say is, sit with the feelings for a bit. Feel sad. Don't beat yourself up for being sad. Accept it's there, think back over the holiday you've had, remind yourself that the bond between you is unbreakable.
Do you have Skype? That can help (although I know it's hard you can't touch).
Keep an eye on yourself for this mood spiralling downwards, but for now, be assured that it's perfectly normal. Try to plan something to look forward to, even if it's just a walk somewhere with your husband. Let him help. Be thankful he is there.
If you're the kind of Mum I am, it's like peeling sticking plaster off every time they leave. It DOES get better eventually - you get used to it, and you make the most of the time. I make myself laugh by remembering how horrified I would have been if my Mum had been like me (perhaps she was, inside, but she hid it very well if so!)
We can only be adults by successfully navigating all the letting-go of Young Adulthood, and part of our job is helping them out of the nest. And it's hard. But as your husband has seen, very worthwhile.
Come and tell us when you are sad, but yes - have hope, because it will pass eventually. x
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All manner of thing shall be well... (Julian of Norwich)