The disappearance and reappearance of friends

Hey, me again.
Ever had the situation when you think your friend is on holiday, and you can't get hold of them for ages? Then, right when it's the worst time to go out and do something, they just pop right back into existence and then ask if you want to go out, say, for a drink at some cafe in the middle of nowhere which is really hard to get to. I think That type of situation is about to pop up in my life about now.