It's wrong to hide things from your significant other.
Margo wants to meet-up with Barb, an old friend from college whom her husband dislikes.
Margot wants to have a quiet lunch with Barb and catch up.
Margot tells her husband she is having lunch with Barb, and he can just deal with it.
Margot tells her husband she is having lunch with a different person.
Margot enjoys her lunch with Barb and reminiscing about college days.
Margot feels guilty throughout her lunch date about telling a lie to her husband.