Dear
Welcome to HCM
We understand your concerns
I went through your details. I suggest you not to worry much. I do not know whether you know that person? His exact age? Whether he is married or not? etc.
There are so many episodes like this. If you search internet, you shall find so many experiences. You need to be careful. Love do have certain behavioral patterns, especially of obsession / possessiveness. Fraudsters do show false signs of possessiveness just to win your heart. Once they are able to lure you into their web, they ask for your photo's of different positions, then they record voices, record messages send by you etc etc. Then they use these to blackmail you. These things happen across the world. I am not denying the fact there are genuine relationships also.
You should take care of yourself. You are just 17 and you should concentrate yourself in your studies. Please do not indulge in affairs, especially through social platforms. You shall do all those after the age of 21 after completion of your studies.
If you require more of my help in this aspect, Please post a direct question to me in this website. Make sure that you include every minute details possible. I shall prescribe some
psychotherapy techniques which should help you cure your condition further.
Hope this answers your query. Available for further clarifications.
Good luck.