Florence returned to Death in Paradise at the beginning of 2021 after making her exit in season eight.
Prior to series 10 starting, the BBC hinted there could be love in the air for her and Neville.
A spokesman said: “Neville soon realises he is existing in the Caribbean, rather than embracing life there.
“With Florence’s help, he determines to seize the day and finds himself starting to reveal some of his secrets – including of a romantic nature.
“But is Neville really built for a life in the tropics? And is a romantic relationship ever going to be possible for him?”
Death in Paradise season 10 continues every Thursday on BBC One.