Every relationship will go through their hard times, you just have to push to get through them. There will be times you want to give up, and maybe you do give up but know that it is not the solution.
You might think that running is easier than trying but it's not. You get so used to having that person in your life that when you do give up you crave their touch and affection. You might not realize right away that you still want them but it will come to you. So why run when you know you're going to end up right back at your starting point.
Fights are a normal part of a relationship. You might not fight for the first few months but you're just in the honeymoon phase. You both are new to the other and you are both overwhelmed with happiness. A few months pass and little things begin to annoy you. You start becoming aggravated more than usual. This is normal, do not think your relationship needs to be over just because you are arguing more. This too will pass. You learn all of the things that your significant other does and does not like, you can communicate better also. But that being said this does not mean you won't ever fight again because you will.
Your everyday stress adds stress to your relationship because you are on edge more and begin to take it out on them even if it has nothing to do with them. If your relationship is anything like mine then when you're good you're great but when you're bad it's like the world is coming to an end.
Relationships are hard to maintain, and they're scary. You give someone the power to completely destroy you and hope that they won't. Either you guys will break up, or you guys will get married only time will tell. Have confidence in your relationship. Do not sit there and constantly doubt it because this will only cause problems. Overthinking kills a relationship, it is normal to overthink but do not let it consume you. When you are fighting just think "we can get through this." Remember that there is a reason you've held on as long as you have.
It's OK to have different opinions on situations, you two aren't the same person.
You aren't perfect and neither are they, so do not expect a perfect relationship.
Keep fighting until you have no more fight left in you.
There are only one of them in the world, no one else will be just like them, so do not let your one go.
If you can't look at them and not want to wrap them in your arms and kiss them then you two can make it work.
Always remind them that you love them, some will doubt your love for them without a constant reminder.
Do not give them reasons to question you, trust is a big part of a relationship. Without it, there is no relationship.
Communicate, communicate, communicate. Tell them what is bothering you and talk about it until the problem is solved.
Things will get better, just keep pushing forward!