My sister in law (again female advise) gave me advise when I split with one of my exes:
1) If she calls, take the call every other time and when you call back from a voicemail always "be walking in somewhere and need to go...will call you later" and never call. It's all a big game and they will play it. Be cordial but brief and to the point, it freaks them. If you approach them like a man and try to reason out the problem they will be even meaner to you (no idea why this is, they see rational problem solving as weak and compromising).
2) Get yourself into better shape and be busy. You can do it.
3) Don't listen to your instincts, they are ALWAYS wrong. Your instincts will be to talk and reason like you would with a man, but women are not into this and as I said see it as weak.
I was speaking to my friend Karin one day (6 years ago) she just broke up with her ex and she says "he keeps emailing me, what a freak. Come here and look at this Eric" I read it and it is a guy who is honestly trying to work on things and isn't being a freak at all. I said "Karin, what would you have done if he would have just said bye and ignored you?" She said "I would have gotten freaked out and called him I suppose." This is all a big test for them. Don't blame them too harshly, it is genetic with them. They can't help this any more than we can help checking out a piece of tail that passes by...