Demisexuality is one orientation that can be considered either a part of the asexual spectrum or a standalone orientation by itself. I’ve heard it categorized both ways, and I can see the merits of both. A lot of asexuals consider it outside of the asexual spectrum because demisexuals are capable of experiencing sexual attraction, and some see it as inside the spectrum because until the strong emotional bond exists in the relationship, the sexual attraction is non-existent.
Personally, I see demisexuality as being a part of the asexual spectrum because it’s similar to facets of grey-asexuality. One way of identifying as grey-asexual is if you experience sexual attraction only under specific circumstances. Demisexuality is experiencing sexual attraction only once a strong emotional bond is established, and that’s a fairly specific circumstance for sexual attraction to occur.
I’ll add some links for you to check out and tag demigray on this as well, since they handle a lot of demi and grey-ace specific questions and maybe able to add more insight to this than I have.
Categories Are Complicated: Or, What Tomatoes Have To Tell Us About Demisexuality
The Development of Gray-Asexuality and Demisexuality As Identity Terms
Hmm, anon, I’m not really sure what you mean with regard to romantic relationships, but for me, it’s simple: demisexuals do not experience sexual attraction the majority of the time, so they are functionally asexual save for a few people or incidents. It’s like bisexual individuals who mostly feel homosexual attraction aligning themselves with homosexuality.