The author (not pictured) was devasted when her friend ended their friendship.Jacques Julien/Getty ImagesI struggled to make friends with other adults when I became a mother.I met a woman at a workout class, and we became close, so I opened up to her.She decided to end our friendship, and I'm struggling to let anyone else in.I moved to a small Florida town after growing up in Miami and have been here for over 10 years.