A bit of the same story here and I'm only here to make it possible for others to find via Google.
I also met a very pretty Chinese lady on Tinder, who said that she was living in Shenzhen. She soon wanted to continue via Whatsapp and told me that she had several gyms in China and she referred to the website whytewoolf.com. She was divorced and she said that she bought a house with the help of her parents, without whom she couldn't have done that. We chatted almost every day for a bit more than a week. She came across as a very nice lady and she sent quite a lot of photos, a few videos and voice apps. She sounded cute AND was way too pretty for a guy like me ;-)

She mentioned a few times that she had to take a look at her VOT in the evening. I didn't know what that was. And then she said that she was very happy one day, because her VOT rose quite a lot. She had invested for something like 43.000 dollars at 0.3 points and it had now gone up to 3.9. I asked her how long ago she invested into it. And answered that that was a month ago, but she was now going to instruct a class mate of hers on how to register and buy and she'd get back to me. I was intrigued.... I had dollar(or actually euro)-signs in my eyes and felt greed coming over me. She then referred to the kolomine.com website.......
I directly googled on experiences with kolomine and encountered this and a few more websites, indicating that it was a scam!
You had to pay with Ethereum or Bitcoin.

I then pasted a few links with warnings for a scam. It 'shocked' her, she was grateful to me. And I asked her if she was real, or that this was an elaborate way to trick me.
And then her reply got heated "What's wrong with you?Cheat you?What do I get out of it?" "Now I have to tell you, I'm tired of you, and I'm still checking out the gym, and you're calling this a f#cking scamOK, you do your own thing, don't try to ask me for VOT news."
And that was the last I heard of her. I then also used images.google.com and searched one of the first photos she sent me. It found a hit... It was a very nice looking Chinese fitness model, who was on weibu, facebook and instagram. I sent her a message that someone was misusing her photos and videos, but I doubt if she got that message.

The name the scammer used:
Tang Siyao
The phone number she used:
+852 5534 7824
The number still seems to be active (probably chatting up to other "helpless, romantic" men)
Don't fall for it.

With kind regards,
drikj