Arguments and fights within a relationship are healthy to a certain extend. This leads to learning more about each other, what bothers your significant other, the way they think and how they feel about a situation. An argument will most likely have a positive outcome if the arguments are "healthy". When i say healthy, please do not think i literally mean it is okay to argue all the time. When i say positive outcome i mean you will learn about the situation and try to avoid it next time. Not all arguments are cool, calm and collected. Some arguments can get out of hand, but at the end of the day you have to see both sides of the arguments and try to understand where both of you are coming from so it can get fixed. The problem with arguments comes in when one of the partners is not trying to listen nor talk about it. Ignoring a problem will not resolve the problem, communication is the key. We should not be trying to win an argument, although our mind will always want to win it is about compromising in a relationship for the sake of it. Please remember that the goal of a relationship is not to have fights, but to learn from each other, fix it and handle it in a way that will benefit your relationship in the future. Benefit, meaning that your relationship will continue to develop, grow and get stronger.
The downs in a relationship are mainly caused by disagreements and wrong-doing. But downs can also be; having money, family problems or even a death. Every relationship will have their differences. Trying to eliminate the differences will not fix the problem and could lead to each individual going their separate ways. Understanding each other differences, and learning how to handle them will just make your relationship go smoother. How can you expect for your relationship to be strong if you have not experienced any downfalls to make it strong? When you are down is when you truly know if your relationship is worth it. Will you be there for your partner? Are you willing to fix the problem and understand them? or are you just going to run out the door when everything is not going perfect? Going through bad or rough times is what makes the bonder of a relationship greater. If you can survive any downfall then your relationship will be unbreakable. As long as you keep in mind that no one is perfect and you are willing to respect, forgive and learn it should be a piece of cake.
The ups are of course anything positive, fun times and good memories. If your relationship is based of sex then that is not an "up" because there is so much more than just sexual activities. Also, you should always try and keep romance alive in your relationship and you should never let the flame die down. If you and your partner have fun together, go on dates, try new things communicate, flirt, love and respect each other etc. then you are having "ups" in your relationship. I believe that in a relationship you should make your lover your best friend rather than your best friend your lover. If you are in a relationship with your best friend then you will always have fun together regardless of the bad times that you have. Best friends always make-up because friendships that are true and real are hard to find.
Note: If your relationship has more downs then ups, then i recommend that you give up. The reason is because ups, good times, positivity, and a good relationship should ALWAYS be greater than the negatives and downs of a relationship. However, do not let someone go just because you do not like something about them. Although they might not be able to fix it you should learn to understand it. If you find something that is worth keeping fight for it because you might never get that chance again.