Girl I work with asked me if I live alone. What does this mean?

A girl at my work who I'm starting to like asked me if I lived alone mid conversation to which I replied "I live with my girlfriend and her sister"... which I do

She also told me last week that we should catch up for drinks after work.

Did I mess up by telling her I live with my girlfriend?

She also has a boyfriend and I'm a firm believer of not s**ing where you eat but but I can sense a strong connection and tension between us.

What do?

Girl I work with asked me if I live alone. What does this mean?
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