Got ignored by that French woman or was it because of her earphones?

2 days ago, I posted that met this French woman near the classes where i go. As i live in Bangalore which is a big metropolitan city and the IT hub of India, I see foreigners. I had a brief conversation with her 2 days ago but couldnt ask her name or number. I am 23 and she is also definitely in the 22-26 age range as she goes to the University nearby which is mainly for MBA or other masters degree so is most definitely a masters student who is also a foreign exchange student.

I thought today I would again talk to her and get to know her more and i saw her again today but she was wearing earphones and walking today and hearing music. I still told her hello but she didn't even look at me and walked away. Of course i didnt follow her and try to talk to her again as it would have been creepy so I walked away too towards my institute. Idk whether its because of the earphones that she didn't notice me or couldn't hear my hello or she intentionally ignored me. I am really upset as I want to get to know her more. Should I again try talking with her on Monday if she is without earphones or its over already and i would never be able to get to know her? I am a decent and well educated guy with a decent height of 5'9 or 5'9.5(174-176 cm).