Charlotte figured delivering William Darcy to Lizzie (and Lizzie's viewers) was the best birthday present a friend-since-fetus could give. Sure, Lizzie would have also liked to celebrate their natal day watching Colin Firth in Regency costume dramas but, Episode 97 would see the resolution of Lizzie's own serialized miniseries (without the costumes -- and it was uncanny how often Darcy and Lizzie coordinated in the vlogs). As payback, Charlotte ate all the honey walnut shrimp with Maria and Lydia, Lizzie got to eat her feelings for Darcy with all her viewers watching, and Charlotte trolled the Internet with the best editorial sleight of hand since the invention of forced perspective.
Darcy took care of the tip