the endermen always attacked when you met their gaze but now it seems they are more aggressive and violent than before and attack players for no reason even if player is looking directly at the ground. this has to be a bug or something thats been changed i have searched and looked and found no info on the subject. please investigate by just going to the end and walking around and looking at the ground you will eventually be attacked by an killed by an endermen. this is an example of the many unprovoked attacks ive recieved from the hands of an endermen. this is a survival realm in the bedrock edition.