HOW CAN YOU TELL HE'S CHEATING....~HELP ME ~

I had a friend that was cheating on his girlfriend once and I was the one he kept talking to about it. I noticed that he would try to avoid his girlfriend and when he couldn't avoid it, he would make the conversations real short and then he would think up some stupid excuse to get away. (And no, Steven, I'm not talking about you, sheesh).

But dont take that sign as a deffinate. Sometimes us guys just have nothing to talk about so we dont o.O;;