What is the difference between bisexual, gay , lesbian , queer and heterosexual ?

So I’ve talked to a couple of gay people and they all told me the same thing. They ALWAYS knew they liked guys and they have ever gotten aroused by a woman in their life. In fact they told me that they always found a woman’s body disgusting. Looking back in my life I’ve been attracted to girls for as long as I can remember even before puberty. All my fantasies were about girls and I can’t remember a time where I felt the same for a guy (because it never happened). At the end I can still get aroused by women and you can clearly see how much stupid this obsession about being gay is. Gay people can’t get instinctively aroused by a woman and like it. Groinal responses and sensations don’t mean anything because they simply do not bring joy or a feeling of desire. Instead they bring panic. I once got a groinal when “testing my reactions” and I was sitting there crying like my life is over. That’s not how genuine attraction works and no one has woken up one day feeling different and no one has been secretly gay and never noticed it and spent his whole life into women instead.

If you truly aren''t homophobic you wouldn't be afraid of being gay unless in very specific cases of bisexual cycling, what is the difference?

Hi everyone, I’ve been really anxious lately, and I just need to get this out of my head. Someone recently told me that maybe I’m bisexual — that I might be more sexually attracted to women, but more romantically attracted to men. That bisexuality is not 50/50. And ever since I heard that, I’ve been spiraling. The thing is: I don’t want this to be true. It scares me. I don’t feel romantic attraction to women, I’ve never wanted to be in a relationship with one. But yes, I get aroused by fantasies involving women — and that makes me feel broken or like I’ve been lying to myself. I love my boyfriend deeply, I don’t want to lose him. I want to feel fully connected to him, physically and emotionally. But now I’m stuck in this obsessive loop of questioning: “What if I’m just in denial?” “What if I’m not really straight?” “What if this is why my libido is low?” It’s exhausting, and I don’t know if this is OCD, anxiety, or if something is fundamentally wrong. Has anyone else felt this split — romantic feelings for one gender, sexual feelings for another? I feel so alone and scared. Thanks for listening.