Castle: The journey of love

Castle and Beckett aren't together yet, kate is still dating Josh. One day Castle and her have a huge fight at her loft, a fight that turned out to be the moment that changed their lives forever, and the only person who knows the secret is no one more than just Beckett, who will lie to everyone including Castle. With lots of things going on in their lives, they start receiving anonymous letters from a J, they'll try to find out who is it, but this J is trying everything to keep them apart... Read the story to find out who J is and to know what is the big secret that Beckett is hiding from everyone. From the writer of "Castle their story" (1 and 2) and "Stanathan A love story"