For what type of people, and how long is "a while" for you?
Eg. If I don't speak to my partner in a week and a half or so I start to think they don't actually like me that much even though I have no actual reason for this, and have to read over their messages and things to remind me that they do indeed like me a lot.
If I don't speak to close friends for over three weeks or so I start to think maybe we aren't that close and maybe we don't get on that well, but when I see them again it's all fine. I am crazy, yo. </font>