At this point, the "evidence" seems pretty conclusive but one thought did pop into my head in regards to the timing of this. Is there any possibility this could be some strange publicity stunt for V in regards to this growing attraction between Erica and Hobbes - perhaps there isn't a real affair but an attempt to stir up gossip for V? The "reveal" of a possible L/C relationship is very "fortuitous" for the show considering where they've been taking E/H.
Probably just wishful thinking that it could be a publicity stunt - and even if it is, it would be crazy for Liz and Chris to agree to something like this. But, think about how this popped up so suddenly in the public. First there was the tweet about spotting Liz with some bearded weirdo at the Met then a video shows up of them later. How many times have we seen someone posting that they've spotted her or seen her yet no real evidence shows up? Yet, this time, boom, there it is. And just before some critical V episodes.
Are we the only ones speculating about this or is the story gaining traction in the gossip world? Do you think Liz has any clue to the dialogue this has generated today? If so, I really wish she would make some sort of statement either confirming/denying an affair and confirming/denying a breakup with Chris.