Tonia, it is EXTREMELY hard. But the more you are able to handle it, it gets that much easier and you start to feel better about yourself as you can plainly see. Change your phone number if you have to...lol. Anyway, if it gets you frustrated enough, just ask him what he wants and why he keeps contacting you. You deserve to know. I hate to say it, but he needs to stop playing this game, because it's not working for you.
However, I do think that you will soon realize what he wants and it is up to you to decide what you want as well at that point. I just think that he seems to be hanging on and trying to keep his options open. Keep doing what you're doing, because I think it's best for you. As I said, you are doing well.
Cdoc