Loop Review- Finally

So, I have already posted about this book a couple times so I will try to get through this quickly. I am also not really sure how to approach this but I suppose I will start at the end. At the end of the book we get a huge twist, turns out the first two books took place in a computer program and the third book was the only one in the real world. Our main character of this book turns out to be a clone of someone we knew in the first book. Yes, a real life human clone of a "person" in a computer program, and the program was known as the Loop. This book definitely is a little on the sci-fi side of things but of course that doesn't bother me. Turns out in the Loop is where the Ring virus was born and it was then able to escape from the program but when it came into the real world it then evolved into the MHC, the metastatic human virus which was the center of the plot. Both Kaoru's father, mother, and his girl friend (who he acquires while we are hearing the story) all have the virus. Reiko, his gf, also had a child Ryoji and he had the virus, Kaoru was his tutor and that is how he and Reiko met. Ryoji's entire life has become consumed by tests and surgeries and he ends up committing suicide in the middle of the book, which is a little hard core bc hes like a 7 year old kid. Reiko also finds out she is pregnant and Kaoru then becomes concerned his unborn child will get MHC and have no life. He starts to question his father more about the Loop project. He ends up going to America and finds the founder and second to last living member of the Loop project Cristoph Eliot, he confirms all the things Kaoru has figured out so far and then fills in the blanks. He also tells Kaoru he is the only way to stop the MHC but basically he has to sacrifice himself and then re-enter the Loop with all the knowledge of this world and the next and live out his existence knowing his "family" is on the other side. BUT also knowing that his sacrifice would save them and the world in general. It was a good ending and completely out of left field, at first when he was told he was born of the Loop and was a clone of one of the first books main characters I was like "WHAT?! That's bull crap."But then he explained it more thoroughly and I got one board. Now I am extremely interested in what will happen in Birthday bc I have no idea which Birthday I will be learning of...