A relationship is point to point – a three-dimensional line that grows or shrinks according to moods and swings. Add a baby and you add another line. You have a triangle: a love triangle.

There is no greater or more complex love triangle than the one created by having a baby.

Someone is always left out and there is a massive amount of attention grabbing … usually from dad who can’t bear the sight of ‘his’ boobs being used as a dairy, and often from junior who, like the dog, pushes in during an embrace.

No matter how strong the lines are – the individuals who make up the triangle – the points of the triangle are likely to wear over time … and very often they just snap.

But sometimes you have to break the points to notice how the individual lines can be stronger than the shape they make up.