Is she in love with me?

Known this girl for a nearly a year and a half. We are in the same social circle but we have only talked about twice. Whenever were in the same area she's always looking all around searching for me. She stares at me from across the room. I notice it espescially when I am laughing/talking with my friends. She actually seems a bit jealous of my friends. Like she is mad they are getting to talk to me. She seems much more talkative and outgoing around her people, the few times I talked to her she seems much more shy/reserved.

Recently I almost bumped into her when she made a sharp turn out of the bathroom. We were both kind of stunned. She said excuse me, but the way she said it was so soft, quiet and feminine. It seemed like in that moment when I caught her off guard, she had no choice but to instantly go back to her most feminine state. Felt like I could hear in her voice, hopefully that makes sense. Im thinking she has a crush on me and because we haven't spoken much and she doesn't know much about me so she is imagining what im like and building me up in her head?

Is she in love with me?
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