I met this girl in a group chat. We hit it off well. We never met in real life, but we had a couple of voice calls. I asked her if she wants to meet up because we are close in proximity. She vaguely said yes to that, then after a couple of days, I cancelled it because she showed disinterest (saying no to my call whenever we tried to discuss further about the meet up). So today I found out that she has a crush on someone; pursuing her is basically out of the picture: I don't want to fight for her. Whenever I talk in the group chat, she gives me all the attention I need; It's essentially exclusive just to me.

My question is this: since she already has a crush on someone, and she gives me all the attention I want in the group chat, does this mean that she's trying to use me for attention? If so, what should I do in this scenario?