I think Yoshiki certainly is heterosexual...
He just experiences love and emotions very strongly (and that's admirable). In addition, he seems no stranger to suffering and pain which are, I should think from personal experience, important elements in creativity. Exhaustion over emotions is what's struck me, i.e. giving your all for an ideal goal. Alas, the goal is unattainable and therefore you suffer because you've been forever locked between the realisation and the sweetness of your goal.
Yoshiki thus has elements from European avant-gardist thought where sublimity of experience is central. It is, still, ironic that (so I've read) X Japan was considered "a working-class band"... Though class shouldn't determine who you are.
What I always wondered about Yoshiki is his house: all white. Is white in Japanese culture (as a home furnishing color) equal to black in Western culture in representing sadness and death?
As a Yoshiki-enthusiast, and (I think) his distant "soulmate", I would have expected complex ornament, epic, passionate details and rich colours, such as red, as well as plenty of wood (my apartment is like that
). But,
these are the precise elements that are missing from his furniture choices. The house almost piercingly sterile, almost like a marble mausoleum. And futurist.
By the way, Yoshiki also has dated Third Runner-Up in Miss Canada contest of 1995, Lana Buchberger:
http://www.moon-soft.com/program/bbs/readelite36856.htmThe Canadian (a former Miss Canada?)
Yoshiki's girlfriend, Lana, has been a real lifesaver for him.
She has been there when he needed someone and has left him
when he needed to be alone. She picked him up at the airport
after he returned from hide's funeral. Yoshiki swore once
that he would never marry, so I think that his relationship
with Lana is going to be like a marriage just without the ring. (the one on the right)