Your reason for fighting is something only you know. Common reasons include testing someone to see "if" they love you. Sometimes people subconsciously feel unworthy so they test the other person to see what their feelings are for them. This is a way of affirming that they have positive emotions about the relationship. It is a way to get the person to prove that they love you because inside you aren't sure. Another reason is similar in that the person has low self esteem and wants the partner to reassure them. The end result is that they want that attention even if it is preceded by anger.
You have to find a more acceptable way to feel that he loves you without picking a fight. This will lessen your need to have these fights. Ask yourself what the benefit is to the fights and how to get this need satisfied without the fighting. You may ask him to communicate his feelings better and more often so that you don't need attention seeking behavior. When you need to be reassured ask for what you need. Do this in a positive way. Let him know that you need this and how to help you in a positive way. Together you can stop doing what you are doing.
Please press accept; this is the only way I am compensated