What's Eating Dexter Morgan?

Deb is going through a particularly bad patch and there is nothing Dexter can seemingly do about it. A cop finds her behind the wheel of her car, drunk. She had the good sense to pull over but ran over a parking meter in the process. She contacts Quinn who manages to get her out without being charged. Dexter blames himself but Vogel says he shouldn't take on her problems. She also wonders why Dexter didn't kill her when she found out about him. Drunk again, Deb goes to the station and tells Quinn she killed LaGuerta. Meanwhile, Dexter and the police check out Lyle ...