I have this strange fixation with these types of storylines. 😂The best friend, turned husband stealer, back-stabber, home-invader, All about Eve type of conniving character and the storyline that follows.
One example can be the OG Bold - Caroline and Brooke were best friends, all while Brooke was plotting and lying to her, trying to get her distant from Ridge and take Ridge for herself - she ended up hiding letters and doing many other things... TO HER BEST friend. ❤️
I am very interested in more examples like this one or even different variations. The most important part the best friend characteristic... they should start as besties... and then the ulterior motive or change evolve in time.