Your girlfriend could be gay for a variety of reasons. Maybe she had a fling with a woman in her past and hasn’t been able to get over it, or perhaps she feels like she should be heterosexual because of the way her parents raised her. Either way, it isn’t your fault that she can’t come to terms with her sexual identity and has decided to hide it.
It’s also possible that your girlfriend is a lesbian and wants to be open about it with you. In this case, you can look for hints she might be giving you. For instance, she may talk about her sexual fantasies and mention other women in a romantic or sexual way. Alternatively, you might notice that she has strong eye contact when talking about this subject and doesn’t mind getting offended when someone disagrees with her views on homosexuality.
You might also notice that she shows a lot of knowledge when discussing LGBTQ issues. If she talks about the neighborhood she lives in which is known as a LGBTQ area or name drops her last partner who happens to be a girl, you can take that as a sign she might be gay.
However, these are just a few clues to help you figure out whether or not your girlfriend is gay. Of course, there is no surefire way to know, and stereotypes aren’t always accurate. But if you watch for these signs, you might be able to have an honest and productive discussion with her about the topic.