Kerry, 31, dumped trucker Matthew Breach, 37, for being dull. They had known each other since schooldays and had been a couple for 14 years. She left him as she wanted "lots of sex", The Sun reported Wednesday.
Kerry now lives with a failed web cafe owner and their baby.
Matthew admits his hobby is sleeping and is thinking about how to spend his millions.
He has joined a dating agency as he hopes to replace Kerry.
He is no rush to find love. "If it happens, it happens. I'm quite happy as I am."
"Kerry's got to be the unluckiest woman in the country. She was with Matthew through all the hard times and that inevitably caused strains - but after she walked out on him he struck it rich," a friend of Breach was quoted as saying.
Kerry had sent a text message to Matthew to congratulate him after his win.
"We still get on. We still talk. We just grew apart. She's possibly kicking herself but I don't know," said Matthew who intends to help others with his winnings.
Matthew bought his ticket on a whim after stopping to buy a pint of milk.
He celebrated the big win by having a snooze.
"I told my mum the news but then I had a short nap to clear my head," he said.
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