So you had a misunderstanding with your girlfriend. That's just a normal relationship challenge. Take it as a chance to get to know her.

First word of advice: Imputing misunderstanding and irrationality only to one side is not helpful if you want to find a common understanding. Communication is a two-way street. You told us what you meant and why. Now let's examine her reactions to understand what she understood and why.

First reaction:

Why are you saying we have already talked, I didn't ask you for a favor, I didn't stop you from going to sleep, go to sleep. (Angry already)

Indeed, why did you talk to her for an hour before you finally admitted you are tired? She might have thought you actually enjoyed the nightly conversation, and now she's disappointed. "He didn't really like to chat with me. He just felt obliged and I was already getting on his nerves". So perhaps next time have some compassion with yourself (you're tired!) and assert your boundary before it's too late. Also, after one hour, could it be you lost some patience and used less-than-loving language?

Second reaction:

Why don't you go away. You never take my side.

So what she wanted is to know that you are on her side, no matter what. She didn't ask for a balanced assessment of the situation; and she didn't ask for a problem solution. All she wanted was some empathy and someone to align with. And now you emphasize with her opponent of all persons! Second word of advice: Save the reason talk for when the anger has calmed down. Telling someone who is overcome with anger to calm down has just the opposite effect.

So you had a misunderstanding with your girlfriend. That's just a normal relationship challenge. Take it as a chance to get to know her.

First word of advice: Imputing misunderstanding and irrationality only to one side is not helpful if you want to find a common understanding. Communication is a two-way street. You told us what you meant and why. Now let's examine her reactions to understand what she understood and why.

First reaction:

Why are you saying we have already talked, I didn't ask you for a favor, I didn't stop you from going to sleep, go to sleep. (Angry already)

Indeed, why did you talk to her for an hour before you finally admitted you are tired? She might have thought you actually enjoyed the nightly conversation, and now she's disappointed. "He didn't really like to chat with me. He just felt obliged and I was already getting on his nerves". So perhaps next time have some compassion with yourself (you're tired!) and assert your boundary before it's too late. Also, after one hour, could it be you lost some patience and used less-than-loving language?

Second reaction:

Why don't you go away. You never take my side.

So what she wanted is to know that you are on her side, no matter what. She didn't ask for a balanced assessment of the situation; and she didn't ask for a problem solution. All she wanted was some empathy and someone to align with. And now you empathize with her opponent of all persons! Second word of advice: Save the reason talk for when the anger has calmed down. Telling someone who is overcome with anger to calm down has just the opposite effect.