The story line is started from Tiffany had affair with her boss and got pregnant and then the boss's wife found out so she get fired. After that hard moment, she moved out to new place by her own with the help of her friend and at that time she got introduced to Taeyeon as her new neighbor or something like that. And after that Tiffany and Taeyeon became closer and Tiffany fell in love with Taeyeon! 
 

I remember all most of the entire story line but can't remember the tile so please help me!!!