Is It Just Me?

I have this pet peeve. I really hate it when people don't reply to my sms or my messages. If they are Away/Idle, I'm cool with it but if they are set to Available and they don't reply after awhile, I get agitated. I would want to keep messaging but afraid it would be annoying so I just keep quiet. When it comes to phone, if I don't get reply...I get agitated too. I would start to think that I've done something wrong and they are avoiding me. Mind's game, Zzz...
And when I call, people don't pick up, it gets even worse. I have this little thing inside me that just wants to keep calling till the other person picks up but it'd be spamming. so...I'm going out of my mind!