Why ask a girl to meet but never follow through?

I’ve been snapchatting a guy for months…we had sex once in the past and he ghosted me. The snapchats are nothing flirty, just general chit chat maybe twice a week, but he did ask me one time to meet up. And he never mentioned it again. I think he has/had a girlfriend! Why would a guy do this?

Why ask a girl to meet but never follow through?
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