Forget about what's normal for getting over a fight. You know what's not normal? Getting into a screaming match with your partner every month.
I really can't stress enough, that's not ok. Not a healthy relationship, not a safe environment for your children, and not a good example for them to follow in the future.
You need couple's counselling ASAP because this pattern has to stop.
Mate I appreciate that you seem to be coming at this with honest curiosity, but do yourself a favour and get this information from reputable news sources.
This whole thing is so polarised and so full of misinformation that anything you read from randos on social media you have no way of knowing if it's credible or complete bullshit.