Well, if you look for a girl who is also high functioning autistic, then the problem solves itself - if things work out. You're young enough that there may be meetups for autistic people your age (there is NOTHING for older adults but a lot of stuff for kids and young adults) so there is at least a chance of meeting someone, depending on where you are.
I was lucky enough to know two wonderful guys, about a decade apart, who I am now sure were Aspies. Met one in college and the other after taking my PhD.
I really couldn't get interested in anyone who wasn't a geeky guy - a nerd, I mean. These guys were both nerds, and in their own unique ways they were funny, modest, lovable, kind. Unfortunately, I didn't do academic type work, so I never met anyone else like them, but I'm glad I knew these two gentlemen, I think I was very lucky to know them both.
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"I believe you find life such a problem because you think there are the good people and the bad people," said the man. "You're wrong, of course. There are, always and only, the bad people, but some of them are on opposite sides."
-- Terry Pratchett, Guards! Guards!