What do you think of a person that doesn't want to have any romantic or sexual relations with anyone?

This question is a bit on the personal side, because I've been having thoughts that it's probably for my own good that I don't pursue such relations. Past experiences of mines and thier lasting effects on me have started to lead me to start considering such ideas.
What do you think of a person that doesn't want to have any romantic or sexual relations with anyone?
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