Hayden Panetteire 's estranged mom says it was no real secret the actress was bisexual ... and she's questioning the timing of her daughter talking about her sexual preferences. Hayden publicly came out as bisexual this week in an interview promoting her new memoir. Her mother, Lesley Vogel , -- again, estranged -- ripped Hayden in an interview with The Daily Mail , saying ... "I do not believe it was being hidden, but there is no historic proof that this is the case." Hayden told  Us Weekly