User blog comment:Raccoon567/Nyssa & Oliver/@comment-6331988-20150513234458/@comment-6331988-20150515214354

I'm pretty sure that it's not in the comic, but since the only time Nyssa ever showed attraction towards someone is towards Sara, I'd assume that she is gay. She could be bisexual, but since so far she has not had a relationship with any man, her only being attracted to woman makes the most sense.