He wasn’t building anything but lies with you, while he’s been cheating in his wife and seeing other women, other than his own other woman. The fact that you thought this affair would end in a fairy tale romance shows how unrealistic your fantasies are.
Why did you get with a married man to begin with? Do you ever imagine what his wife feels?
Like, what is the attraction here…do you think one day he will grow up and be honest? He’ll ever stop lying? You need to see a therapist and date men who are available for relationships, married men, by definition, are not dating material. Do better.