DH worked away a lot (still does, but not quite as much) and we have had everything from squealing excitement to see him through to completely ignoring him when he got home. Not what you are describing, though - for you.
My only "tips" would be - as piglet says, make sure DD knows where Daddy is and when he will be home (DH's travel was international, so we used to look at the map on DS's wall to see where Daddy was this time), and try to arrange for DP to talk to DD before bedtime every night - not easy for him, as she probably isn't very good on the 'phone yet, but reassurance for DD that Daddy still exists even when she can't see him.