The mystery appointment was with a designer named Chloe at Harriet Kelsall Bespoke Jewelry! The Guy proposed! And The Girl accepted, as all of her friends and coworkers knew she would. The Guy worked with Chloe for months to create a custom engagement ring for The Girl, because he is the sweetest.
(The Girl would like to clarify that these designs and any designs or jewelry shown, whether complete or in progress, belong to Harriet Kelsall Bespoke Jewelry and are protected under copyright.)