Re-writing and splitting the book

Yesterday (and by yesterday I mean at about 2am) I re-wrote the prologue, chapter one and what I had typed up of chapter two and some of chapter three which will be moved to chapter four. I have changed the relationships with the main character and two others in the book which could be interesting. I was reading through the storyline again, I really don't like how it ends so I'm thinking of splitting it into two books so I can develop the characters more and I can fix the ending. So that's what I'll be doing tonight. I need to figure out where I'll split the story and re-write the plot for the first book, I'll need to see if I can find a better name too, because the name I have right now doesn't really fit anymore. Again I still think its weird that I'm just randomly talking to nobody. But it's slightly less weird that just talking to myself. It's so much easier to get followers on twitter.