If you're really, really, really still into her, give or send her something nice. Like flowers or a good book. Even if she's
not yet ready, she may just be forced to call, if only to say THANK YOU.
But maybe you should give her some time apart from you first. There must be a reason why she's an ex. If it was your fault,
she'd have to know that you had time to reflect on what you did wrong and were really sorry for it. If it was her fault and
you're still calling, why, she has the upper hand and will play you for all you're worth.
Whether you still care or not, just make sure you're not coming off as desperate.