Jar of Hearts

Make it make sense.....I was really enjoying this book until about 75%. This was fast paced and I really looked forward to finding out what happened and who-dun-it. This had some good twists in it, and I breezed through this in 2 days. It held my attention all the way through and it wasn't until the end that I was left with SO MANY QUESTIONS...

I really thought Geo was going to be the killer. But once it was revealed that Geo had given a baby up for adoption and this child would be a teenager by now, it wasn't hard to figure out what was going on. But after everything was revealed, I was left feeling slightly cheated. Dominic ends up being the 2nd serial killer, ok, I get that, but why would he kill his other fathers children and then say that he did it to hurt his mother??? These kids were his half siblings by other mothers. How would this hurt Geo?? Make it make sense? And what are the actual odds that the serial killer father that broke out of prison would actually come back at the exact moment when the son is trying to rape his mother? Calvin is now the hero? What? And when it's revealed that Geo is actually the one that chopped up her best friends body so it could be buried, Calvin is the one vomiting from disgust? I thought he was a total narcissist asshole that got off on controlling Geo? This plot had good bones but quickly fell apart for me at the end.