whats a headmate if you don’t mind me asking? also is it normal to get a soulmate feeling from a character even if you don’t have a kin in their series? (or at least none that you know of)

A headmate is a voice/entity/person/mind that coexists with you inside of a shared brain and body. Headmates are distinct people with full personalities, including fears, dreams hopes aspirations, etc. They may or may not also have lives before, or concurrently with their shared mental existence.

Some kinds of people who have headmates are soulbonders and multiples, though these are by no means the only people who do.

As for a soulmate feeling- I’d have to know more of exactly what you mean.