Tell him everything? Surely not. Not that she knows particularly much about anything, but even so... "I can tell you some things in exchange for what you know." Maybe there will be an useful tidbit about lupines in there, and that might be the difference between life and death one day. And she is curious about what he means with 'ones with spirits riding them'.

...And she wants to keep talking to him. That too. It's been too long since she could have an actual, proper, friendly conversation with someone while they saw her.