At war with mum over her sexy ex

MY mum is furious that I’m sleeping with her ex-lover.

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She's threatening to ban me from her house and write me out of her will. She's told my sister she will never forgive me for this outrageous betrayal.

But she’s overreacting. She and my new lover (her ex) were never suited. They never lived together and only dated for a few months.

Yet she’s acting like she’s been stabbed in the back. How do I tell her she needs to get over herself?

He and I got together a few weeks ago in a neighbour's swimming pool.

The neighbour throws amazing pool parties and my fella and I clicked after he pushed me in the water and threw an inflatable flamingo at my head.

I got him back by pulling down his trucks. Knockabout, playful stuff. But then we got serious.