Simple answer is no you're not a bad person, or horrible for staying away.

If your relationship has ran its course, then its time to leave. And that is without all the manipulation from him, and the break up's when he didnt get his own way. Its actually his fault you have left, his behaviour has driven you away. Please remember that when you feel rotten. Its a shame he's using that same manipulative behaviour to try and get you back.

And... 10 years ago I had cancer diagnosed, and the next day my boyfriend dumped me too. You know what? I just didnt care. I couldnt, and didnt want to force him to stay, plus fair to say, I had other things on my mind!! I already suspected it was on the cards anyway. And the one thing that cancer taught me was to live life well, only have one go at it and enjoy what I have. Cliche, yes, but I think that's what you need to do too. Take care, and I really dont think you should feel bad. Even without all of his stuff, its your life, lead it your way.

ps - if you can, change your mobile number. Or can you ban some numbers getting through? Nobody needs that.