Proxysexual is a sexual orientation for those who feel as if they have a strong connection with a sexual orientation, or with the concept of sexual attraction, but do not have the will or the ability to figure that attraction out.
The term Proxy- represents the sexual orientation that the person believes they have.
Proxysexual could also be confused with Quoisexual, with the main difference being that people identifying as Proxysexual still feel like they have an orientation, but they just don't know what it is.