The woman he loves, her career is enormously aided by staying in the public eye. I would guess that the paparazzi following her and her boyfriend helps get more jobs and increases the public awareness of her, putting her in higher demand - which would allow her to earn more money.
His previous girlfriend was an actress, so while the scrutiny has significantly increased, it's not completely new territory. If it bothered him that much, he would have shied away from a person who works in the public eye. And if it becomes unbearable in the future, there are steps that can be taken such as moving out of the city and moving in to a gated community in the suburbs.
The paparazzi is scum, and I do not support them; I chose not to click on the link. By the way, I've also heard that tmz loads spyware on your computer so those that did click, you may want to delete all the cookies from your browser.