She splashes cash as revenge on me

SPENDS OUT OF SPITE.

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BAGS OF PROBLEMS: His childish partner is wasting money that they really don't have

MY childish partner spends money to punish me.

Any time we have a row (which is very often these days) she goes straight out and smashes the credit card for all it's worth.

Recently I dared to treat my mother to a gold bracelet for her birthday. My partner was so jealous that she hit the shops and got herself three identical pieces - and they weren't even on sale. Two days later I found them flung on the bedroom floor.

I must conclude that she’s very immature. A few weeks ago, the people next door lost power. They had no heat or hot water.