Flight Attendant Current
Distraction; Communication Breakdown; Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Passenger Misconduct
General None Reported / Taken
Company Policy; Environment - Non Weather Related; Human Factors
I was the A FA on this flight.  I proceeded down the aisle.  I saw seat number XX1 without a mask and I said; 'Hey; you have to wear your mask.'  He just rolled his eyes and pull the mask from his neck.  Just as I finished; a lady was in front of me headed to her seat.  I turned and walked back up front until she could get to her seat.  I immediately returned to the back and passenger XXA had the mask pulled back down to his neck.  I did exactly the same thing again; very politely; I stated; 'Hey; you have to wear your mask.' He looked at me and said; 'Shut up.'  I responded; sorry; what did you say?  He removed the mask and yelled very loudly; 'SHUT UP!' and that's what I did and walked away.  I proceeded to the back to inform the crew what had transpired and before I could finish;  Flight Attendant Y asked me was it the guy with the X hair [style] at the window and I said yes; how do you know?  He stated he had asked him several times already and once during boarding.  At that time passenger in [seat] XY4 had come to the back and told me that the gate agents had an issue with him at the gate and during boarding before we left ZZZ about the mask and he has been a nuisance the whole time.  I just said OK.  I proceeded back to the front of the aircraft and when I looked at him; the mask was back down around his neck.  I informed the Captain.  Honestly; I felt like if this man is bold enough to scream 'SHUT UP' at me in the cabin; there is no limits.  I was too afraid to say anything else to him.  He continued the flight without a mask.  I discussed this with the Captain.  The crew and I agreed he would become belligerent.  We informed the Captain of such.  A CSA met us at the gate and I just know she spoke with him and stated he had the mask off when she approached him.  Passengers were complaining about him not wearing a mask.He does not need to fly if he cannot comply.  Also; the CSA in ZZZ did not inform us/me of his previous behavior.  He should not have been allowed to fly.  It would have been helpful if we knew in advance.
Flight Attendant reported a passenger was confrontational and refused to wear a face mask.