B remains that dazzling "what if" because you two never got past that thrilling stage of going at each other like ferrets in heat. By your own admission you get chronically itchy once things get too domestic and go lookin for the buzz that only a new relationship, preferably an illicit one, can offer. If you were to make B the main act in your life, believe me you'd find yourself inextricably drawn to X,Y, and Z. You decided to reform and make a committment. Then a test arrived in the form of an email from B. Since you've remained friends with her, write back. Say it was nice to hear from her, but you are in a very happy relationship that you hope will go the distance. Say you will always think fondly of her, but you two have to remain to each other the ones that got away. Then end the correspondence. Put all your focus on a single letter of the alphabet; in this case it's easy to remember because it's A.



