[ There's a part of her that wishes she didn't have to lie to him— if they were back on her Earth, then it'd be just like he was on the same side as Kira, right? So she shouldn't keep anything from him. But things are different. She has no way of knowing if she'll ever find her Death Note again, and in the case that she does... things should be this way. For now.

She senses that ounce of doubt from him, just from that word, "maybe," but she just lets the word come to her and pass, not allowing herself to second guess what he may think of her directly lying to him like this. ]

You're both lucky Misa was around, huh?

[ There's a huff, an attempt to play at her usual bravado, her usual self-importance. But even that lacks heart, too— she's worn out from the search, her energy dampened by a genuine concern for him. She doesn't have the humor at present to even jokingly complain about the sorry state of several of her friendships due to her healing attempts. ]

But I would've figured out something, even if that hadn't worked... I didn't know what would happen if you stayed that way. So I got scared.

[ He said he isn't mad, but she can't help but want to absolve herself of some of the guilt she'd felt and cutting him so deeply. ]