I saw the movie Enemy (2013) a while back and trying to decipher the plot which is quite complex even after seeing it twice.
I know for a fact that only the History teacher character was the real one out of the dual roles and the other one was fictitious and the whole story revolves around the lead character (Jake Gyllenhaal) trying to get over the extra-marital relations he had and trying to keep his marriage from disaster.
This conversation happens (in the timeline of the movie) when the Adam Bell rings up Daniel that they have similar voices and wanting to meet in person. After which, Daniel's wife confronts him that he has started lying to her (of seeing some other woman). She next goes to see other personality her husband (Daniel) speaks of. She goes to the college where Adam was teaching.
They are sitting over side-by-side benches
[AB] Hi. Is everything all right? How many months are you?
[Wife] Uh... Six.
[AB] That's nice. I should be going. I have a class, I have to teach in it.
[Wife] Never know how your day is gonna turn out. Have a nice day.
My question is at the context of this conversation did the original Adam Bell was so lost in himself that he even forgot his wife and was living in a world only in a relation with another girl?