[lucyjoy]

If she decided to do this on her own, with no input from you, then send it for her from her. Let her know that brother is going through a phase right now where he doesn't understand that being grown up doesn't mean not talking to family. Tell her he may not respond.

If you suggested the idea to her, apologize and tell her it's not a good time to do this as that is manipulative(not saying you would do that, but I know when my kids left home in a not so adult way, things like this often crossed my mind). We want them to know we care and are still here, but sometimes we need to wait until they are ready to hear it-very hard to do.