Senior in office tried to get physical with me what action can i take

I'm 21 years old female. Someone who is superior than me in office, manipulated my mind to go to his place at night. He is very decent and respected in office. So I thought he is just helping me with my shyness as he promised me we will go out and see nightlife. Still I tried to convince him that i will come in morning, till he emotionally started talking. Things changed after reaching there. I also felt safe when he hugged me. But when he bite my lips, i realized where he is taking things. And asked him to stop. Later also he insulted me. Then i kept a distance from him, but he came back till i forgive him. Now again he avoids me. i don't know what happened to me. He used me that i know. I just want to know is there anything i can do legally to save future victims. I was able to stop him, but i had to go through emotional trauma being a Borderline girl. Kindly provide me information