Wouldn't that make you depsise the dark side that much more? If accepting the dark side of the force allowed his anger to swell so much that he killed the love of his life, why would he continue down that path? Did the dark side cloud his mind that much that he didn't realize what he was doing?

I don't know if I like that. It makes it seem like he has no control, that Darth Vader is a mindless entity controlled only by the dark side, unable to have any control over his own thoughts and emotions.