Most Helpful Guy
An ex... it's possible.
There was a girl I met on POF and I thought she was stringing me along because we barely ever met but she would text a lot. Eventually I kindly asked her to delete my number because I felt things were going no where. I blocked her because she wouldn't stop texting/calling
Most Helpful Girl
A person's silence is as good as their words , it lets you know exactly where you stand with them. So I'd stop contacting him
He may eventually block you or even change his number if you continue to message him.