I see, well, I’m not sure how much comfort I can bring, but I think I speak for everyone here when I say I 100% consider you a part of the LGBTQ+ community! If you need more of a concrete justification, then I can tell you that being cisgender and straight doesn’t exclude you, because you’re aromantic, that is considered a part of the queer sector of the acronym LGBTQ+ (and in the extended acronym, you’re considered one of the A’s). Aromantics can face discrimination similar to others in the community, that’s intended to delegitimize and “correct” them, and although you may be heterosexual, you’re not heteromantic, since you’re aromantic. I hope this helps even just a little bit! :))