Friday night rolls around and after a hard week you were expecting to have a drink with a girlfriend, but she seems to have left you hanging on read... To make matters worse (and the humiliation?) you even saw the little typing sign appear, yet you never received a reply. Well, if that’s the case, obviously you or your "how about a drink tonight?" didn’t deserve an answer. Let’s take a look at why some people don't reply to messages, and why when someone doesn't reply to your text, this makes us feel so bad.