Girlfriend called my mum a b*tch? Breakup?

We’re three years together, loving relationship. However for New Year I invited my girl friend but she refused as its boring she said, she prefer pub with her family. She said either her and my parents to stay over New Year but I chose my parents, but called my mom a b*tch controlling me. She regrets and says sorry afterwards though and will never say it again.
Break up
Stay together
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Girlfriend called my mum a b*tch? Breakup?
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