Book about a female journalist ( gossip/entertainment) and famous actor.

Please help me with the name of this book. She’s a journalist, seems to be the person who gets the scoop 1st, goes on a press junket tour with famous actor (like a plane full of journalists) I think they sit next to each other on the 1st plane ride. I don’t think they initially like each other but he takes a journalist down the carpet at each stop kinda like an escort/date but part of the press junket. She’s not on the list at 1st for the carpet event but then gets added to it or something. Anyways they fall for each other but then someone else gets the scoop about them and it blows up in their faces and I think his assistant is behind it.