She explains: "Somehow, there's still a stigma. I could easily try to keep (the affair) a secret, but I prefer to lay my cards on the table."
Unfortunately, the truth hurts.
Ms Phua says: "Two of them broke up with me shortly after I revealed the truth. It didn't matter that this was history even before we met."
The third boyfriend "struggled for several weeks before coming to terms with it".
Former mistress: 'I have money but no love'
