There was also Fang Fang and Rep Swallwell

https://abcnews4.com/news/nation-world/swalwell-and-fang-fan...

Diane Feinstein also had a Chinese spy for a driver for 20 years, though I'm going to assume for my own sanity that wasn't a sexual relationship.

https://www.cbsnews.com/sanfrancisco/news/details-chinese-sp...

I think this has been going on a very long time, it's just that these were politicians so I think everyone just brushed it off as "business as usual."