I think the context of the question was

"Have you ever had a boyfriend?" (age 21)
"No"
"do you have issues with your sexuality"
"You mean am I lesbian?"
"Yea"
"No, I'm not"
"But you're not sexually active"?
"No"
"Do you know why?"
"No"
"Do you touch yourself?"
(gave him a face that could spell a thousand words).

I guess he was trying to get at what my libido was like? Or whether I was "normal" for my age. But I don't really know why it mattered? He was strange in that way, so I'm glad that was just a "strange" question of his and I won't have to deal with it again. Hopefully.