Separation Blues

My step kids are going on vacation with their dad.  They are leaving tonight.  I hate when this happens.  On the one hand, I want them to have a total blast.  On the other, I selfishly don’t want them to go because I don’t want to have to miss them for a week.  I have to act like I’m feeling the former while absolutely feeling the later.  I really hope they have a great trip, but they haven’t even left yet and already I am missing them so much.