Confused

A girl I used to be tutored by who I had a crush on before my girlfriend and I were a thing walked into the same café. My mom and I were in a cafe along with some of her teammates as she’s on the rowing team and the way that they entered one person that I know went in stay there for a second as my first response in voluntarily was to widen in my eyes, even though she was not the one that I had a crush on in the past, after that person moved out of the way the girl that I had a crush on was in front in the same thing happened, where she stood there for like a second before they all sat down then when it was time to get their food, the girl that I had a crush on, walked by our table, and I guess she was trying to look at me like catch my eye, but I did not let her, but I kept on watching her anyway although I did look at her when she was farther away and I’m pretty sure she saw and when she was walking by and saw that I was not catching her eye exactly she sighed. Now for context, I had a crush on her last school year and I thought I was over her, but I guess I was wrong. My girlfriend has said that it was rumor that she had a boyfriend but now I am questioning that as during one tutoring session last year, I remember she and another girl were talking about boys and they say I know a boy you would’ve liked not to say that she doesn’t have one now, but to say it was just proved you know another piece of something I remember is she has a picture of a boy in her phone case and I was staring at it one day and then she said we are just friends. Then another day during tutoring she randomly said do not doubt. She is from Spain so I am confused because Europeans are naturally super nice so I was taking that into consideration but now I’m wondering is she by is she into me Is she sad now that im taken And I’m honestly left wanting her again after seeing her in that café, even though I was doing something else I wish I haven’t because I have been not seeing her and not exact way in encounters before except that day sparked something that I guess I was suppressing so what do I do and how does she feel I don’t know. I’m so confused. I don’t know what to do.