Hello and welcome to Healthcare Magic. Thanks for your query.
If your boyfriend's anger irritability and poor frustration tolerance has been of recent onset, then underlying psychological problems like stress, anxiety
have to be considered.
If they have been long-standing, without any other psychological problems, then they are more likely to be part of his personality.
If you feel that his anger problem is prominent and causing inter-personal or social difficulties, I would advise you to ask him to get professional help. There are various good psychological therapies and counselling
techniques which can help with such problems. Also practicing relaxation techniques
, learning stress-management and coping skills will also be beneficial.
Wish you all the best.
Dr. Jonas Sundarakumar