To think this person odd?

Female, 34 but looks 17, never had a boyfriend or done anything with a guy. Works part time, lives at home, only socialises with family. Has crohns recently diagnosed but lived like this before all that.
She is shy and sweet but can't help but find it weird. She has no known learning difficulties (comes across as sensible and bright) and I don't think autistic as she is very loving as a person. Just curious.