My gf was away visiting family for a week and I invited my sister over where she had a bottle of pink wine. She left the wine in the fridge and forgot her leather coat so I hung it up.

Gf comes back and goes into closet to pick out stuff to change into. She finds the leather coat and flips the fuck out. Starts calling me names, how I'm a scumbag cheater, etc. I called my sister on speaker and asked her if she remembers that she came over and left some wine and coat here. She said that she did.

Afterwards, I made her apologize for her behaviour.

What would redpill do in that situation? Was it too beta to call my sister and make a weird phonecall instead of holding frame?