Wanting answers is natural. I wanted answers when Mark left me for a girl 9 years younger than me... I wanted answers as to what changed with Louis for him to end it.
Yes it becomes an obsession.
Wanting them to feel the hurt that you are feeling (anger/rage at them) will come and go.
I still want Louis to contact me, come and see me when he is in Perth... It probably wont happen but the hope it still there. I want to have contact with him even though it will hurt - him even changing his FB profile pic hurts??!

The hate will come and go. The dreams will stop (or at least become very infequent).

If you are blaming yourself for the break up, please don't. One thing that I learnt and are still learning is that it's just not true. Things change, people change..and grow apart.

Guys (and I am not trying to be sexist) see to have a "is the grass greener" approach. Thinking that maybe there is something better out there. the truth is that it's not, it's just different.

I know you want answers.. everyone does. These answers (and mine) are not ever really going to be found. As hard as it is, sometimes just trying to let go of the questions is the only way.