Is it paranoia?

When you begin a conversation with someone and they cut it short. Is it too paranoid to believe that they just don't want to talk to you? I have had that done to me more than once. It is more like a typed conversation than a spoken one but the conversation was cut less than five minutes into it. I got the feeling that the guy just didn't want to talk to me. I do know that I tend to over analyze things sometimes. So I was kind of hoping that is was a case of excess paranoia.