[Even though her logic is sound, Heart doesn't seem too worried. In fact, he takes a few steps closer. Not too close, still, but that's entirely for her sake.]

I appreciate the concern. And I definitely understand your fear, but... I'll be fine. You, however, don't seem as fine. [He frowns a little.] It wouldn't feel right to leave you here alone after you ran away like that...

[He's worried about her, plain and simple.]

These powers of yours are... very unique. I don't believe I've ever met a human who could do anything like that.

But you have trouble controlling it?