No tax, no withdrawal via a romance scam

I am not able to withdraw my balance because they say that I need to pay a tax before withdrawal. Of course, in the USA you pay capital gain taxes to the IRS during a tax return in the following year. I was tricked into their platform by a Chinese woman I met through the online dating app, Hinge, so this is likely to be a romance scam. They even threatened me in WhatsApp, as attached. Also, their WhatsApp phone numbers change every now and then. It has been almost 2 months since I requested the withdrawal