my new best friend

I have a new tutor.
I disappointed her before I even met her.

We set to meet last weekend outside a McDonald's. Through email she knew I was an American. I walk up to a girl standing outside who was looking around as if she was expecting someone.

So I go up to her and ask,"Hi, are you Jenny?"
She looks at me briefly and then looks away. As you would if a crazy person approached you, asking how many birds were sitting in their pocket.

I ask again,"Are you Jenny?"
She turns further away from me.

Convinced that I have thoroughly creeped out a random stranger that was probably just waiting for the bus, I walk in, give my tutor a call.
I look around, looking for someone who was answering the phone.

The girl outside who I creeped on was on the phone.
What a coincidence.

I ask her where she is.
She says, outside.

So, I go outside.
I call out,"Jenny."

She spins around.
And her face is crushed.

I'm perplexed, why didn't she answer me when I asked her very directly if she was Jenny, my tutor? (Who else, after all, would know someone's name and come up to them to ask them?)
So I ask her,"Wait, you saw me before, why didn't you respond when I asked if you were Jenny?"

She answers,
"mmm...I was looking for an American."