At any point I could have just ridden at my usual speed and dropped her (like everybody else in the group did), but I wasn't convinced she could read the map well enough to find her way back before dark. And I know what it's like to get dropped, even though usually someone would come looking for you if you were late getting back. So I have a hard time leaving someone out there on their own if they don't seem up to riding independently.
So my rant is, dammit, I want to ride at my pace or draft and keep up with the "big boys". Don't screw up my ride by showing up for one you're not up to doing! Join a group that meets your capabilities, like a Class D, or ride on your own until you can keep up. I didn't really want to spend an extra hour and a half babysitting you!
Next time I won't.