3. Cynthia Nixon

Probably best known for her portrayal of Miranda Hobbes in the HBO series “Sex and the City” which ran from 1998 to 2004, Cynthia is one of the most active gay activists in modern Hollywood.

However, before she started dating Christine Marinoni back in 2004, Cynthia Nixon was in a long-term relationship with a man, schoolteacher Danny Mozes.

Although they never officially tied the knot, she and Mozes were together for 15 years and have two children together.

According to the “Sex and the City” actress, before her relationship with Marioni, she only had relationships with men and, since falling in love with a woman, she considers herself bisexual.