An impossibly big grin stretches all the way across my face. This has to be a joke. I might be optimistic, but I am under no illusions – I am not a lucky person. I don’t get picked for TV shows, I don’t have many people to call for help, and I definitely don’t get questions that are going to be easy… and yet here we are.

‘You know this one?’ the host asks in disbelief.

I know I might be blonde, but that doesn’t mean I don’t know anything about dinosaurs. I mean, I don’t know anything about dinosaurs, but what gives him the right, huh?

‘I know a man who does,’ I say as my grin inches even wider. ‘I’d like to call my boyfriend please.’

‘Your boyfriend knows a lot about dinosaurs?’

I nod, only semi-smugly.

‘I’m sorry to hear that,’ the host jokes. ‘What’s your boyfriend’s name? What does he do?’

‘His name is David and he’s a lecturer.’

‘What does he teach, dinosaurs?’

‘Palaeobiology,’ I reply.

‘Is that dinosaurs?’

‘Yes.’

The audience laugh wildly. Mike is a sort of cheeky-chappy host. A thirty-something former musician who has somehow made it as a TV presenter. I suppose it’s his charm – the audience clearly love him.

‘OK, let’s get Dinosaur Dave on the phone,’ Mike says.

I wince as he says ‘Dave’ – David hates being called Dave.

‘So all you have to do is, when Dinosaur Dave answers, just tell him you have one big question to ask him. If he gets it right, you’ll be £50k richer!’

‘Sounds good,’ I say.

It doesn’t just sound good, it sounds great. David knows everything there is to know about dinosaurs, there’s no way he’s getting this one wrong. I just hope he answers – can you imagine if he didn’t?

‘Quiet in the studio,’ Mike says, hushing the audience as the phone rings.

‘Hello,’ David says when he answers the phone.

‘Hey David, it’s Rosie,’ I say, in a suspiciously formal manner. ‘I… erm… I have One Big Question I need to ask you…’ I try to hide the nerves in my voice, but it’s impossible. I’m on TV – calling up my boyfriend on live TV – to ask him a question about dinosaurs so that I can win £50,000! I cannot stress enough that this is not a typical day for me.

‘Let me stop you there,’ he says. ‘Because I think I know what you’re going to say.’

‘David...’

‘No, let me speak,’ he insists, as though he’s talking to one of his students. ‘For a while now I have suspected you’re far more serious about this relationship than I am, and I was happy to let it slide because no one was getting hurt, but now I suspect you’re calling me to ask me to move in with you perhaps – maybe even marry you, you can be quite full-on… Anyway, I just don’t want you to make a fool of yourself so, the time has come – we need to break up. I didn’t want to do this on the phone but… it’s not you, it’s absolutely not you. It’s me. I’m just not that into you and you’re getting way too serious too quickly…’