I'm going to lash out at my partner and call them an absolute disgrace for interrupting me while I was browsing youtube.
Why did they interrupt you while you were browsing youtube?
They wanted to tell me that I was wrong about something.
While it is annoying to be interrupted by your partner while you are doing something relaxing like watching YouTube, it isn't appropriate to call your partner names. Calling your partner names will cause her emotional harm and will negatively affect your relationship. You should talk with your partner about knowing when to better discuss things that are bothering her so that you can be prepared and in the right frame of mind to address issues.
Dude I don't care I'm going to hurt her
She was probably wrong for interrupting you just to tell you that you were wrong about something. But insulting someone is never really okay, especially if it's over something silly like youtube.