AITK for blocking my college senior without informing him?

I am a minor and will turn 18 in a couple of months. My college senior, who was a great advicer regarding my career turns out to be a creep and a flirt. I talked with him thinking he was a normal person, but soon came to know his true colors. So I avoided him as much as I can.

One day out of nowhere he proposed me in front of my classmates and I politely declined it telling him I am not interested in these stuff and that I am career oriented right now. Because of various reasons, we had to see each other unfortunately so there is no running away from him. He used to talk random things after that and cleared it to me that we can be friends. I was not interested in that too but I didn't want to have the consequences of abruptly rejecting and blocking him so we became friends with each other.

One day I had to block him because of constant messages from his side (which I hated), asking my whereabouts when I was travelling back to hometown. I may have overreacted by blocking him out of nowhere, I could have explained him to stop bothering me for sometime but that happened, I blocked him. Now when I am in my hometown I received a call from one of my male friend claiming that the senior is in extreme rage because of me blocking him. Senior said (as told by my friend, translated from tamil to english), "Ohh, so she's showing her arrogance by blocking me? Now I shall show my arrogance. She is 4 years younger than me but still I kneeled and proposed to her in front of everybody. Now I will rape her in front of the college and will let everybody see. Let's see where her arrogance goes after I rape her"

I have unblocked after hearing this and I am in extreme panic right now. I am scared to even return to college now 😭😭. I don't want to reveal my personal details here but any kind of advice would be highly appreciated. Sorry for my poor english and translation.