Why does the guy that I have crushed on before either has a girlfriend or the person is gay?

Sometimes I really doubt my taste and I have a bit of phobia now. When I crush on someone else, I feel very worried that the person is gay.

Maybe this is because of my past experience and observation. I feel that gays are mostly very detail-oriented, gentle and approachable. As a female, I found it very easy to talk to this kind of guy.

However, when I really like someone else, I will rather not do anything. I will probably just observe first. I have a crush on my colleague and I really suspect he is gay.

He is able to befriend all the females in the workplace and includes the female boss as well.

I have observed him for a very long and this person is nice to every girl unconditionally (actions like sharing bubble tea in the same cup, food and writing encouraging messages). From what i observed, this colleague always interacts with any of the female colleagues without any specific motive.

When taking MRT back home, I also observed that he will not particularly look at females and how females dress (my other female colleagues are quite pretty and always dressed themselves until very cute and lovely).

I don’t know if he is just someone who can interact easily with women or he is gay. Anyway, i hope he doesn’t know that I have a crush on him, because it will be so awkward in the workplace.

I just hope this feeling of crushing on someone else will leave me soon. When i crush on a person, my IQ really drops a lot and this affects my judgement.

Hopefully my brain can stop releasing hormones and stop tricking me to find a boyfriend for passing down my genes