Leonardo DiCaprio will be one of the celebs bummed if the city enacts a proposed ban on e-cigarettes in public spaces. “The Wolf of Wall Street” star — who’s seemingly inseparable from the smoke-free gizmos — was seen Monday night at Meatpacking District hot spot Catch puffing away, while ignoring the advances of the many women who kept approaching a table where he sat with three friends. A source said Leo was instead texting his model gal pal Toni Garrn all night.