First off...the advice GH and Sven and the other gave is right on.
And I want to highlight this point: Yes, it IS hard as she recognizes...if you can do your best to be the person you need to be regardless of what she gives or doesn't give, and in doing so make the process easier (i.e., less pressure or negativity from your end), you will see results if she's got any interest at all in rebuilding things. It may take a while but it'll pay off.
As far as the ILY go, I'd make it a rule of thumb to lay low with that for a while. Don't tell her; show her by being polite, light, respectful, helpful, and fun. If she's at all receptive you could drop one in once in a blue moon, but I wouldn't make a habit of it for now.
Be the kind of person she wants to hear it from first. I suspect once enough time passes, that part will take care of itself.
You keep using that word. I do not think it means what you think it means. -- Inigo Montoya, 'The Princess Bride'