Congrats, but I just have to ask one thing... you have been with her for 5 years, and the child is not biologically yours?

On a more serious note, judging by what you wrote, you are a very strong individual, I wish you the best of luck. Takes a lot of compassion and grit do to what you are about to do. Best of luck to you, and I hope he turns out to be an epic slasher.