[And go in she does, because doing anything else at this point draws attention to the (rather obvious) tension in the air. She doesn't want them to start fighting, and if acting oblivious to the fact that they're practically growling and snapping at each other will prevent it, then Zelda is going to act completely oblivious.]

There's a guest room right this way. It isn't much, but it should be fine until you can find a place that suits you.

[There, see Zelos? He's not staying FOREVER... She leads him upstairs and pauses in front of Shizuo's old room. He might have only been there for a few days, but she still thought of it as his. Looking a little wistful, Zelda opens the door.]