In the wake of Kate Spade's shocking suicide yesterday, new details are coming to light about what drove the iconic handbag designer to take her own life.

The fashion mogul and her husband Andy had recently separated, and he was actively apartment hunting for a place of his own, despite her pleas begging him not to end their marriage. Not only that, but her sister revealed that Spade had been battling mental illness for years, and suspected she may have been bipolar. Her family had urged her to enter treatment multiple times, but she never did as she was worried about how that might affect her brand.

The 55-year-old was depressed and drinking a lot in the days before she hanged herself with a scarf on her bedroom door in her Park Avenue apartment.

"We are all devastated by today’s tragedy. We loved Kate dearly and will miss her terribly. We would ask that our privacy be respected as we grieve during this very difficult time," the family said in a statement.

Her brother-in-law David Spade broke his silence yesterday on her passing, and he remembered her with only the fondest memories.

"Katy at my book signing. I love this pic of her. So pretty. I dont think everyone knew how fucking funny she was... Its a rough world out there people. Try to hang on," he captioned a pic he posted to Twitter. "Fuzzy picture but i love it. Kate and I during Christmas family photos. We had so much fun that day. She was so sharp and quick on her feet. She could make me laugh so hard. I still cant believe it. Its a rough world out there people, try to hang on," he wrote on another Instagram photo of the pair.

She leaves behind 13-year-old daughter Frances Beatrice.