What happened to Felice Bauer?

"Life After Kafka" imagines the life of Franz Kafka's first fiancée long after their broken engagement. Fact and fiction intertwine to bring Felice Bauer to life, so we finally see her beyond Kafka's published “Letters to Felice.” Also, it led me to another book, because I became so curious about the relationship and Kafka. Here’s what this is all about.