Mark sent the woman $30,000, but that was just the start.
The woman was able to convince Mark to send money to the UK, the US and Malaysia for fees, taxes and transportation that she said would allow her to bring her inheritance of gold to New Zealand.
Eventually, Mark had nothing left.
Online safety organisation Netsafe estimates that New Zealanders lost $8.7 million to romance scams between January and September 2018, compared to $1.4 million for the whole of 2017.
"The tragedy of romance scams is that people not only lose money, but also have their hearts broken. They go through a grieving process over losing someone they thought they loved, and who they thought loved them." Groot said.
Romance scams can start through dating websites, other social websites such as Words with Friends, unsolicited approaches through social media, by email or through apps.
"These people will move quickly, confessing their love for you within a short time of making contact.
"They will then ask for money to help a sick family member, or for airfares to come and see you. The stories become more and more elaborate," Groot said.
Tips to avoid romance scams:
Never send money to someone you haven't met in person.
If the person who approached you sends a photo of themselves, try putting it into the Google search bar to see if they've stolen it from someone else's identity.
Show any documentation they send you to someone else and get their help to verify it.
If you think you're being scammed, stop all contact. You might need to close or change your social media pages and replace the sim card in your phone.