Right I prob ABU but I'm really fed up about this!
It's a very special interest holiday, one that I would never want to go on but I'm fed up that dh is getting a holiday this year and ds and I will go nowhere!
I'm back at work full time after having ds and come the summer(I'm a teacher) I will be exhausted, but due to finances we aren't able to afford a holiday for the family.
My poor dh has saved for this for ages and now the time has come I want to be happy for him and pleased he is going but tbh I just feel a bit envious.
He will be away for 10 days. I guess it's not even so much that he is going but the fact it is for so long and I'll not even get a wet weekend in a caravan! 
Needless to say he thinks I'm being v u and I can't talk too much about it as I really don't want to spoil it for him.