Girls, a girl asked me on tinder to add her on fb, however, I don't actually have a fb account. What should I do?

I am not on facebook, but i created a fake one so i could use tinder to meet people. Im not the most social person so i find it hard to meet people, and i dont really have a close friends group.. So what im afraid of is she thinking im just after a one night stand, or a creepy loner which im not.
Girls, a girl asked me on tinder to add her on fb, however, I don't actually have a fb account. What should I do?
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