1. Know that conflict is inevitable.
There is no way that you can avoid getting into arguments or fights with your partner, no matter how hard you try to avoid arguing, you’ll find yourself face to face with your partner in a screaming match ultimately and all of your attempts to save yourself from this very fate will prove to be futile. The truth of the matter is that despite what they may portray love as, in romantic comedies and such, love is not flawless. You will not find someone who’s so effortlessly perfect that the two of you will never get into any sort of argument at all in real life, and if you do find someone like that, chances are- either you’re incredibly very lucky or your relationship is fake and your partner isn’t wholly invested in this relationship.
It would be in your best interest to emotionally understand and accept the fact that you and your partner will disagree on a lot of things and you can’t really do anything about it. So, when the two of you do argue, it’s important to argue effectively and wisely without causing any permanent damage to your relationship.
2. Learn to communicate rather than making rash decisions.
Sure, you feel like hurting your partner the way they hurt you, sure, you want them to feel the pain they've put you through, all of these feelings are understandable but this in no way means that you should let all your negative thoughts take over you and make you do things you might regret later on.
Instead of acting out like packing up and leaving, you should learn to effectively communicate with your significant other and tell them how you feel about whatever it is that they did to begin with or maybe try to get them to see things from your perspective.