Speaking as he received the Freedom of the City of London at the Guildhall today (March 19), Lewis commented that the pair's unlikely romance is not "a story that has got legs", arguing: "They'd be in the divorce courts very quickly."
Lewis also revealed how much work has been done so far on Homeland's third season, which will air on Showtime in the US and Channel 4 in the UK later this year.
On receiving the prestigious and historic honour for his outstanding achievements in acting, the 42-year-old said: "Being awarded something like the Freedom of the City is like being given the keys to the city. I feel very attached to [London], extremely attached.
"Of course it's lovely winning awards, that's recognition... that you're doing well, but this just means what you've achieved within your profession has a broader reach, so it's extremely flattering."