The fact that I didn’t know he was married seems immaterial. I’m still a member of Luke’s love triangle. A horrible thought comes to me. What if I’m not the only one? He could have a whole bloody harem for all I know. And what about Cindy? I don’t know the woman, but I’m certain she doesn’t deserve this. She’s already forgiven him once, and Richenda seemed determined that she should know what’s happened this time. Oh, God. I’ve literally ended a marriage.

This thought is too much for me, and before I know it I’m bent double, retching into the gutter. Thankfully, I was so nervous about executing my master plan earlier that I haven’t had much to eat today, so it’s mostly dry-heaving. Even so, I look around once it eases up, hoping desperately that nobody has seen me. When I finally reach the sanctuary of my car, my hands are shaking so badly that it takes me several goes to get the key into the ignition and, realising that I’m not really in a fit state to drive, I decide to sit for a while and try to collect my thoughts.

I need to talk to someone. I can’t process this on my own, but I have no idea what time Tash will finish work. Mike is the other obvious candidate, but he won’t be back until nearly seven, assuming he’s not going out somewhere with Sarah, and it’s only two o’clock now. I do have plenty of other friends, but they’ll also be at work and I’m not sure this is something I’d share with anyone except those closest to me.

The universe has obviously decided that I’m not suffering enough, as my phone pings with a message. It’s from Luke, who else?

Missing you. How are you fixed on Friday? Checked the rotas and neither of us is working. I have to relieve the carers at 5 but could be with you by 1? xx

I stare at the message in disbelief. Now that I know the truth, the barefaced duplicity of the man is stomach-churning. In fact, I worry for a moment that I’m actually going to be sick again, but that sensation is quickly replaced by rage. Without thinking, I start to tap out a message.

Are you out of your fucking mind? I met your mother today and I know everything. You are a lying, cheating bastard and I want nothing more to do with you. Text me again and I’ll report you to HR for sexual harassment.

I’m just about to press the send button when I remember the promise I made to Richenda just before I left her flat.