A person who feels the need to precisely label their own sexual orientation in order to feel they like they have an identity.
Todd: At first I thought I was bisexual, but then thought I was homosexual
when Jerry flirted with me, but then I read online and discovered I was demisexual
, however now I'm starting to feel like I might really be pansexual
, but after going on a date with Jerry, I think I'm still just heterosexual
or maybe perhaps heteroflexible
Me: You're a labelosexual.