BF fighting over tiny details. What can I do?

My boyfriend and I have known each other for 26 years. So I know him very well and he even says I know him better then anyone else. I have commented about his moods a few times or the last 7 months. Example of this are "You seem feisty today" "when you came over you seemed quite." and one time I told him he was high maintenance Which I found out didn't mean what I meant it to mean and apologized. Now suddenly were getting in to Hugh fights because he says im interpreting his moods incorrectly. Im not starting these fights he is im not mad or anything. So he wants to know why I think hes quite or feisty and I tell him the reasons why. Then he starts trying to debate every single word in the sentence and the comment about being feisty turns into a 2 hour long debate/ fight. He claims he just wants the truth to remembered and that I cant create emotions for him. He will feel how ever he wants and I have it wrong. I say im entitled to my opinions and own observations and his version of events isn't always accurate. but real issue is this. Is a comment about a persons behaviors and moods worth a 2 plus hour debate and or fight? I feel like I cant comment or talk to him. I swear im not the one starting or elongating these arguments and I finally get to the point I just don't care and don't even want to hear his voice. Are we doomed?