Dexter, season 7

Is this a new beginning? Or the beginning of the end? 

“that’s my foul-mouthed foster sister, debra. she has a big heart but won’t let anyone see it. she’s the only person in the world who loves me.”

Debra to Dexter in 4x12: “You’ve given me confidence, support. You’ve been the one constant - the one constantly good thing, in my life.”