Hmm, I can almost hear the theme from "Jaws" in the background. I can almost feel sorry for Ginny, but to paraphrase Yoda, "Jealousy leads to anger, anger leads to hate, hate leads to the Dark side." She's partially set this up herself and I'm not at all certain she'll be relieved of Tom so easily, or comparatively inexpensively, this time.
It was interesting to get a "soul fragment's viewpoint" of how things are progressing at this point. 'Twas even more intresting to realiZe that for all his brilliance, knowledge, and ability, Tom still has major loopholes in his understanding of things. I suspect this may contribute to his downfall.
I enjoyed the bafflement and powerlessness of Snape and I thought what Harry did to Pansy was a delightful bit of revenge; she really should watch her words better and it's a shame the magic of the school took her at her word, just as it did Draco.
Given all he's learned and developed, Harry's still human and it's good to see that his mistake didn't materially make matters worse; I'm sure he'll still be regretting it, but he'll work through it.
The next chapter looks to be quite interesting as all of these plans come together in one nexus.