The season finale made me realize how much Dexter and Deb's bond has turned into a toxic relationship. In the beginning of the series, Deb served as one of Dexter's few main connections to his humanity. But, now because of that connection, Dexter finds himself moved to do certain things to protect her, things that go aganist the code, and, because of her love for Dexter, Deb finds herself crossing moral lines that go aganist who she is as a cop. Their love is poisoning them and all I can see is a tragic ending for the both of them.
I don't know how Deb is going to handle killing LaGuerta. I foresee an alcohol-fueled downward spiral, a mental breakdown, or a suicide attempt. Either way, I see Dexter becoming the one who will keep Deb grounded instead of the other way around.
I hope Hannah comes back.