You’ll think it’s killing you at first. You’ll want to stay in bed, picking apart everything you’ve said and done (and not said and done) in the last year. What if you’d listened more, moaned less, worn lipstick…?

The last thing you’ll want to do is clad yourself in Lycra and gasp for breath in the gym. You’ll think the place is full of self-obsessed freaks, like that airhead he left you for. But Helen will drag you along.

A routine will form. Those new trainers, the neon pink ones Helen said you should splash out on, will beckon to you every morning before dawn. You’ll sweat a little more and cry a little less. Five rounds of squats, eight reps each. Increase the weight by five kilograms. Go to work. Go to bed. Repeat.

There will be nights when the pain will wind itself around your neck and burrow into your heart. On your anniversary. When his favourite song comes on the radio. When you’ll be at a party and your friends will study the floor and shift their feet when you ask if they’ve seen him. If they’ve met her. Yes, they’ll say, then change the subject.