Aren't you tired trying to figure it out? Why can't they just say whatever they really think, so we don't have to go through this stupid guessing game again and again and again. They complain about wanting a real thing, and they don't have to courage to let us know what they want. I hate when someone says I'll call you on wednesday, and it is freakin' saturday, and no call, and I'm trying to figure out to call him or not to call him, if it's life, or him not wanting to see me again. Life is too short to waste it on this.
Maybe he just does not want you or just don't want to be bothered. But if he is a real man and is really interested in you he will call you or may even send lovely text messages. BE PATIENT LOVE WILL COME!!
He is not interested, so move on.
He ditched your number
He forgot or hes not interested
Depending how long did he take not calling back and for what reason. For example if you guys where talking on the phone and he said hey I got to do something ill call you back and he never did all day then maybe something did occurred but if weeks passed or days and nothing then there maybe something wrong but hey it depends on the situation :)
I think he is either 1. Does not want to talk about a certain thing and it puts hin on the spot or 2. He has a lot going on and needs time to think
That is waiting for you to make the first call or avoid that you are going to break up with him depending on how the date turn out to be.