[Well him being worried is pretty justified, all things considered... Celica's definitely nervous about this all because of what happened last time, which is part of why she wanted a partner to go down with in the first place. So she's relieved when she hears Yosuke's voice, and looks on over to him.]

Oh, hello Yosuke! Yes, I was going to head down soon. I was just waiting to see if someone else wanted to go down there with me, since it seemed better and much safer than doing it alone.