This is because both of you didn't sit down together and talk about matter that both of you are argue. The matter is still bothers both of you.
it mite be a phase...cuz not all relationship can go so smoothly all the time like both of u guyz loving each other...plus u guyz didnt see each other for a long time...and the problem may not be solved, so it seems like something is between...im sure it's a phase...if both of u guyz are committed to dis relationship and want this to continue, for sure u can get thru it and both of u guyz will be bak to the relationship u guyz had at the beginning....