Best Way
The best way to rid yourself of any harasser even if it is sexually based IGNORE them do not feed anything any harasser or trailer does or attempts to provoke for a reaction and in some cases it is so they can crocodile tear crying victim. This is because they don’t have anything in their existence and it’s an excitement kick to them. Those type of beings get off on combating everything and anything, it’s he dark triad personality traits.
Because of this any toxic negativity in general, blow it off. After awhile it will begin to sink in they aren’t affecting you and they aren’t receiving the narcissistic supply they seek to receive from harassing and consequently gaining a reaction from those they harass.