i just dont understand women

There was this girl from my college. She was from another branch. Both of our branches went on a college industrial visit (IV) together, since my branch has fewer students. During the IV, this girl's friend became friends with me, and I also talked to these girls. We went to Delhi, and these girls suggested that girls and boys should walk in pairs to avoid any issue from the public (I don't know why, and I still don't get it). We visited shops and stuff like couples and had a lot of fun. After that couple facade and all, when we went back to the bus, this girl and I were walking close to each other, our hands touched each other, and she suddenly held my hand like lovers. I didn't know what to do after that. I was a little nervous to face her, but I faced her and talked with her normally on the return trip too. After the trip, she didn't come to college for some time due to some medical issues or something. I texted her on Instagram, but she wasn't very active; she would just say "huh" or "mmm," so I completely avoided texting to not feel creepy. (I thought the hand-holding was some kind of misunderstanding and she didn't feel anything towards me at all, just some random dude she met.) After a while, she came back to college, and she came towards me when I was talking with some of my friends. I was really nervous, so I didn't pay her much attention even though she initiated the convo suddenly. After that, one day there was some meeting in the seminar hall, and I was chilling in the back when I saw her. I smiled like a normal person, and the next thing she did was act like I'm some kind of creepy person and didn't give me a smile back at all, and went and sat in someplace else. After that, I thought I was completely misinterpreting things and she was thinking of me as some sort of creep, and I decided to never even look at her. Then one day during the college festival, she came back talking all friendly with me when I was alone, and I put on some attitude (my mom was with me) and told her I need to get my mom home. I didn't see her after that incident, never again (it's been 1 year), and still I don't know what was all that about. Did she feel anything towards me?? Or was I misinterpreting stuff?