unhealthy patterns

for some time i have noticed that that certain kristaps' reactions when i am crossed created in me emotions and actions i did not like. i could not put my finger on what it is. until i told my friend about it and she said that he reacts like a victim. this however makes me prone to react like an aggressor. i am not happy about this pattern of behaviour we have but i am willing to work on it and hope with a help of God i will manage to break it. i cannot change kristaps but i can change my ways of reacting.