She has lived and worked here and also in Ireland for years, but currently lives in the USA. She has an affinity with the UK and for years has been talking about her love of British culture and her favourite TV shows here and is also a fan of Big Brother, she was a big fan of Nikki Graham when she was in the house and talked/tweeted about her a lot at the time.
She may come across as sucking up and mentioning it a lot, but it's not some new thing to get liked, she has been doing it for years and years.