And it’s not just particularly vulnerable people who fall victim either.

“[It’s] not the case that stupid people fall for romance scams - they can be very clever,” Professor Monica Whitty, a cyber-psychologist, explains. Scamalytics, a company which runs anti-scammer software for a number of the major dating sites, are trying to reduce online dating fraud by creating profiles of the average male and female con artist.

Watch out for inconsistencies and repetition too - if you’re talking to a team of scammers, they’re bound to forget what’s previously been said and slip-up occasionally.

It was only when her money transfer was blocked due to a security alert around the man’s name that she realised something was wrong.

Not long after, Jane discovered an ex-colleague nearby had been scammed by the same man at the same time and she’d had a very lucky escape.

After a couple of months, he said he had to go to the Middle East for an oil rig refurbishment and even sent Jane pictures of him in his hardhat on the rig.

She was all set to meet him at the airport when he suddenly messaged saying his funds had dried up and he needed £5,000.

And a lot of the time, you’re not just talking to one person behind each profile - you could be exchanging messages with a circle of fraudsters acting together, according to KIS Finance.

Serious fraudsters sometimes even create further fake profiles and use them to be rude to you, all to make the main fake profile seem more desirable.So what can you do to avoid being a victim of an online dating scam?Jane advises meeting up with someone sooner rather than later - more often than not, scammers are based abroad and won’t be able to meet you.“I just couldn’t believe that was what he was saying,” Jane told .But she was feeling vulnerable after the breakdown of her marriage and agreed to transfer him a smaller amount, despite admitting it sounded “crazy”.A new report by the National Fraud Intelligence Bureau has found that last year, singles were conned out of £39 million by fraudsters they’d met on dating sites and apps.