You really should not fight. This does not mean that you can not disagree and that you should not tell him how you differ from him. But fighting is a very destructive behavior and it is necessary to avoid it at all costs.
Accept it as it is.
If you do not accept it as it is, the fights will never end. You must convince yourself that the perfect man does not exist, and although there are many things that can be improved, there will be many others that you will need to accept, because you can not change the way of being of people, or pretend to mold the couple as I want. Not all men are retailers, many do not like to cook, etc. However, it is essential to reach some agreements. Maybe you do not like to cook either, and they will have to take turns doing it, or they should do it together ... Do not forget, analyze if the attitudes or actions you have are "unhealthy", it is better to leave it if it is like that.
No put on fights fights of the past.
If a while ago they had some discussion that affected you a lot, forget it, do not bring it up. Focus on the present. What happened, it happened, and the more you mention it, the worse the fight will be. When you re-shine what happened in the past, you also bring all the old emotions that accompanied that incident.
Be careful what you say.
When we are angry, we do not measure our words. We say things that do a lot of harm and that are not really true. Insults and threats should be avoided at all costs. It is better to keep quiet or to talk slowly. If the two are very agitated, it is better to wait a while before starting a conversation. You will find that what made you so angry was not really that horrible.
Talk to not always discuss the same thing.
If you always have the same discussion, it is very important to talk about it and find a solution, that although the best is not going to satisfy 100% of either of them, to reach an agreement to avoid a new fight. Example: If he likes to go out with his friends once a week and arrive very late, and it bothers you, to reach an agreement so that he does not arrive so late or leave less frequently, etc. That will depend on you. It is important to trust, if you do not, the relationship will not persevere. Each person needs to have a space of freedom and individuality to be happy. Remember that happiness depends on oneself and not on the other. He needs his space, socialize alone and also with you, but his world does not revolve around yours. You must perform your own activities, and others in common.
Your relationship is very important, and if you are together it is for a reason. This is usually forgotten when they are fighting, try to have this in their minds.
Photo: http://www.kebuena.com.mx/2016/41552-41552.html