Marie-Lou Nurk and Jason Oppenheim. (Photo by Axelle/Bauer-Griffin/FilmMagic) Selling Sunset’s Marie-Lou Nurk is engaged to French businessman Ronan Lebraut. Nurk, who previously dated Selling Sunset’s Jason Oppenheim, announced the happy news via a video posted via her TikTok account on Wednesday, September 11. The clip shows Lebraut, 47, whisking Nurk, 26, away on a boat,…