Why do I always end up in confusing contradicting situations with men?

Look, I know I'm going to sound very unromantic here but...it sounds like he's got another woman in the background. He hopes to work things out with her but wants you around in case things don't work out with her. She may be in an uncertain situation (deciding whether to leave her husband, considering a job in another city or a foreign country etc.) And he is waiting to see what she will do.

And now, I'm going to sound even less romantic. First, if you have the money to do this (and you can check it out with a phone call or two to see what it might cost), get an in depth background check to find out what's really been going on in his life. This is something you can do to see how much truth you are getting from a guy. Second, if you cannot afford this, or really don't want to do this, just let this guy go. Because, let's face it, if he is wavering this much, he is not an enthusiastic devoted guy falling hard for you and you alone...right?