Think about anyone who has come out as bisexual in the media. Megan Fox, Billie Joe Armstrong, Margaret Cho, Anna Paquin, Megan Mullally, David Bowie, Angelina Jolie.
Their sexuality is usually glossed over — often times, the media decides the person is either gay or straight, depending the relationship they are currently in or the relationship they get into in the future. If a man comes out as bisexual and in the future gets into a relationship with another man, people generally define him as homosexual (such as Alan Cumming). It’s important to note both homosexual and heterosexual people are monosexual and only attracted to one gender. In saying someone is straight or gay based on who they are currently with totally negates an individual’s identity.
Several people throughout have been classified as monosexual, despite identifying as bi. Marlon Brando himself was bisexual and he’s well-known as a “manly” man, it’s no surprise that people would want to erase his sexuality to fit their perception of him. Anne Frank was also bisexual; she wrote about having a love for girls and wanting a girl to date in her diaries. Angelina Jolie is one of the most well-known bisexuals and she still gets marked under a monosexual title because of her long term relationship with Brad Pitt. Yet, in doing this, people are neglecting her identity."