Poor Harry. I didn't allow him to be as nice as he really is. It's just, in many Snarry stories that are Epilogue-compliant, Snape sort of seems to slide into a settled relationship with Harry, sort of fulfilling Harry's dream. Yet in canon we only see Harry wanting a settled relationship, with kids and a white picket fence. We never really see what Snape's dreams are, other than at one time, they seemed to be full of personal ambition. So, instead of having Snape slide into Harry's settled world, I wanted to see how Harry might slide into Snape's more independent, me-first world.