
This could fall into the category of "what-if".
I've been having "issues" with my parents lately, and I've been contemplating a lot about parent/child relationships. That got me thinking about Anakin and Shmi. During the events of ROTS and afterward, I wonder if Ani ever thought about how Shmi would react to what he'd done and where his life was headed. Ani loved and respected Shmi so much, wouldn't it cross his mind at least once? If I may be so bold as to speak for Shmi, I'm sure that she would be deeply ashamed of his actions when he was heading towards the dark path. Would that matter at all to him? I'm definitely not of the opinion that Ani's (or any adult's) motivations should rely on their parents' reactions, but Shmi was so gentle and loving, and she instilled those values in Ani. Sure, the main reason he chose the dark path was to save Padme, and even if Shmi was alive, she couldn't do anything about that, or about the other issues leading to his fall. But considering Ani's intense attachment to Shmi, it wouldn't be out of the ordinary for him to think about how she would feel about all this.
It's similar to how Ani knew that Padme wouldn't understand about him killing younglings and the other Jedi; that's why he didn't tell her the full truth before he headed to Mustafar. If Ani gave it some thought, I'm sure he'd conclude that Shmi wouldn't be thrilled, either.
I'm sure that any thought of Shmi brought back too much pain and guilt for Ani, but, let's face it, turning to the dark side was not exactly honoring her memory.
Thoughts, anyone?