It seems more and more evident that a fellow student (we are in the same engineering year) of the opposite gender tends to avoid me because she seems to fear that I am somewhat interested in her. This is the result of several big mistakes/ misunderstandings, which were however never intended in the sense that she seems to have understood.
In the past we studied together for the first year exams. I basically "tutored her for free" so that I could better grasp the concepts. There seems to have been no misunderstanding about that. What happened next however: after exams she regularly texted me, and also came to me in real life just to chat "to become friends" (with the obvious goal that I would again help her in the future). She even called me through telephone to ask me how I did, etc. Seeing that, and not having many "friends" at university, I also began to "treat her like she treats me", and that's where things get hard.
At the beginning of the semester, having not many people to eat with, I texted her regularly if we could eat together. The first few times, she accepted, but, over time, her text answers became more and more annoyed, until I finally stopped asking her.
She offered me and another student a small cake as a gift. Three weeks later, I gave her a small bag of candies as a gift, because when someone offers you a gift, I thought it was polite to give one to. But when I gave it to her, she smiled in a really "hypocritical" way.
She, me and another student were walking on the road while leaving the campus during evening. She and the other student were talking together. I was in the middle, so I decided to walk on her right so that both are next to each other (so they can talk to each other). She looked a bit "perplex" when I did that.
We were studying with 4 other people together. She was asking a question, and I did not understand it, so I asked her if she could repeat it in a more precise way. While she did that, I basically stared at her and she gave me kind of a dirty look. I was actually focused on trying to understand what she was saying.
She invited me to a study event, probably because I had helped before (like to show that she is grateful or whatever). That, I was punctual. But she came more than 10 minutes late, and came with someone else. I was already in a bad mood due to an exam. I felt a bit "disrespected" that a), she could not tell me a bit earlier that someone else comes, and b), they arrived late. I thus became really angry internally, and tried to hid it. But she noticed it.
At one time, while the animator was explaining something, I was staring at the ground thinking about the exam. She was then just next to me, and I noticed from the side of my eyes, that two times she looked at me with a really "perplex" face (like "wtf is this guy doing, why doesn't he listen but stares at the ground").
While leaving the event, another participant asked me which bus I take to go home. I said I had no idea, currently I'm just following the two people next to me (she and the person she came with). She obviously heard it.
At the bus stop, the 3 of us were waiting for the bus. I noticed that her face was full of fear, like she really was afraid of something. She and the person she came with originally planned to eat together after the workshop. She then indirectly told the person she came with, that she finally doesn't want to and left. Wanting to go home, I finally told the other person that I think I will also leave. But for that, I needed to take the same bus as her. While I was preparing to move, having overheard the conversation, she looked in my direction, with a face again full of fear. I thus stopped moving and decided that I should take the next bus (so to not be with her).
A few weeks later, I saw her in the canteen. She hid her face when I walked pass her.
Is there a way, be it in real life or through message, I can realistically communicate to her that I'm not interested in her whatsoever without causing even more misunderstandings?
Thanks for your help !