[It very well may be, so she is hesitant to even ask. She must, she knows this, but the wording has to be just so. She is silent for a moment, formulating it in her mind before finally looking at him. Meeting his eyes.

And still finds it...difficult to speak.

Because important things are always the hardest to say]

You are...one of the most compassionate people I've ever met. [She has not met many, granted, but it seems to her to be true.]

You fight for others almost as well as you reach out to them...

[She smiles a little here. It's equal really, but a little tease, however subtle, makes it easier for her]

But promise me you won't forget to look after yourself. Perona may need friends [Zoro may need to be killed] but Sanji-kun has a heart as well that deserves to be cared for...

[This is not quite working out. She wants to say not to go overboard. But how can she stop him from doing something he feels he must with his ful will? She wants to tell him not to lose his heart, but perhaps no one can fully help that.]

So please... be careful. And...let us help you if you need it.

[Because deep down, Robin knows that if is heart was broken, she would still not be permitted to go after them and crush them into fragments beneath her fingers]