For richer or poorer

I have an old school friend (let’s call him John). He was your classic introvert, preferring the simplicity of numbers over complex relationships, trading basketball cards over playing sport, chess over parties. John’s superpower was numbers. Following school, John found he was a natural accountant, and quickly became the managing partner in a small accounting firm that specialised in small “mum and dad” businesses.

You can imagine my surprise, when we reconnected in our 30s, and