U need to talk to your elders about this issue or consult a women NGO for this type of problem otherwise that fellow will take undue advantage of your weakness and you can land into health troubles. You have to be bold enough to threat him and stop him.

Many assaulters continue sexual assault thinking that the victim is activelt or passively okay for it. Please tell to the assaulter in clrar and un-mincing words that you hate that and dont hesitate to complain to other family members/police, if he doesnt stop it. It will stop. Then keep away from him. Really complain if he still attempts.