I agree with the others on this. Don't even enter into a dialogue with him about anything.

He's manipulating your good nature to try to bring you around to his way of thinking.

I know you're thinking that 'what if this time there really is something wrong' but if you've ever heard of the boy who cried wolf, you'll know that people get what's coming to him. If one day he calls and he really is 'not ok' and you ignore the call, then that's HIS fault and not yours. He's not a part of your life anymore. He's not your responsibility and if he genuinely did love you he'd respect your right to live a life without him causing upset.

__________________
"Time flies like an arrow -
Fruit flies like a banana"

M Y - N A U G H T Y - P I C T U R E S ! !