Sorry need to vent.
First day back at school for DD (5) today. On arrival at school we are greeted by friend whose DD is in absolute floods of tears because daddy couldn't be there for her first day back. The mum (my friend so knows DH is away) then goes on to give me the whole 10 minute story about how her DH has been away since Friday on a business meeting and won't be back until Thursday.
I stood there listening and making the right noises (oh poor you etc etc) whilst the DDs were having a chat the conversation went
DD friend "my daddy isn't here"
DD "my daddy isn't either why are you so upset"
DD friend " he is away until Thursday"
DD "well mine is away until April"
at this point my "friend" went "it isn't a game of top trumps you know your daddy is never here so you don't get upset" 
My DD then didn't want to go to school and has come home saying she had a great day but wishes daddy was here and she really misses him especially when the older DCs are away at school (they went back to boarding school on Sunday). She also said her friends mummy is mean as she is upset every time daddy is away.
I am just fuming and needed to vent in a place where we all know the feeling.