The conversation between human and AI assistant.
Why would a girl lead me on when she had a boyfriend the whole time?
I was talking to this girl for a while and I thought she was really into me. But then I found out she had a boyfriend the whole time. Why would she lead me on like that?
It's possible she enjoyed the attention and validation you gave her, even though she had no intention of pursuing a relationship with you. Alternatively, maybe she wasn't happy in her current relationship and was seeking emotional fulfillment elsewhere. Regardless, it was not fair or respectful to you to act like she was available when she was not.