Some people are train spotters, others are plane spotters; I'm a good-sense spotter! I observe the world around me and document my insights in a list called the Good Sense Guide.

Ella Watson, aka Ella Mental is still trying to digest the fact that Toby, the guy she's loved and adored since, like, forever, is now her boyfriend. Her love life couldn't be any more glorious! But something is terribly amiss with her dearest friends, and Ella needs all the advice she can get from her trusted Good Sense Guide. Could Rule #13 be true -- that nothing turns out exactly like you hoped it would?