"Well," she says, "given that I'm not going to gulp down my drink and get blisters all down my throat - " Unlike some people - "I'm going to be here a few more moments. So - why don't you go and find something?"

He's not going to run off; she's sure of that. And she could take a few moments to herself to try to sort through all that he's just told her. Because - her, doing summonings...So giving him something to do might be good, at least for a little while.