Most Helpful Guy
Don't judge your relationship's functionality by whether or not you argue, but rather by how arguments get resolved. An argument is an opportunity to get closer if done correctly, but I've known some otherwise nice people who just didn't have the communication/empathy to make it happen. Hopefully that isn't the case here!
Most Helpful Girl
It can mean the opposite! Actually some people lose their nerves only with the people they care about. They become sensitive to what they say, take every word seriously, and answer them back because they feel hurt.