Did she lie about being taken?

Met a girl a week ago in a work thing. Vibes big time. Spoke for a couple of days, asked her out. Told me she has a boyfriend.. past 2 days we have 40 minute phone conversations..
Could she be lying about being in a relationship? Is it likely she likes me and is finding out more about me despite her relationship?

Conversation is flirty and lots of laughs

Thanks!
Did she lie about being taken?
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