People make fun of me because I live with my parents and don't want to find a girlfriend?

I divide my time between my parents (they are separated) and I'm not a basement dweller: I work, just started to work as a professor, and I support my mother financially. I wanted to become a priest but let it go as I didn't think it was the right way for me.
I'm still uninterested in women and worry more about academic pursuits, but some friends make fun of me and tell me they can introduce them to some girls to see and date, but I refuse. They laugh and tease me.
What can I do to make them stop?
People make fun of me because I live with my parents and don't want to find a girlfriend?
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