This is a long shot but here it goes... What is the 80's movie or may early 90's where there is a perfect housewife... no kids... but you can tell she loves her husband. Things appear happy.
Husband goes to work. Woman begins to clean house and somehow finds out husband is cheating. She goes into shock and the only thing you see her do is sit for, what appears to be ,hours in a chair.
Camera does erie close ups of her while she sits.
Forgot if she murders her husband or not.