This list is for Olive. Which category of anger describes your boyfriend's?

Chronic anger, which is prolonged, can impact the immune system and be the cause of other mental disorders.

Passive anger, which doesn’t always come across as anger and can be difficult to identify.

Overwhelmed anger, which is caused by life demands that are too much for an individual to cope with.

Self-inflicted anger, which is directed toward the self and may be caused by feelings of guilt.

Judgmental anger, which is directed toward others and may come with feelings of resentment.

Volatile anger, which involves sometimes-spontaneous bouts of excessive or violent anger.

There are anger management programs that your boyfriend could participate in, in your city, to help him determine the root cause of his anger problems. That will benefit both him, and you in your relationship. Otherwise, if left unchecked, his anger problem will only get worse and continue to interfere with your relationship with your family, your friends, etc.,.