How can i get over the guilt feeling after a break up of a 9 years relationship? it was the best choice for both of us but hes so hurt, its killing me

The bottom line is: That you can't prevent him from grieving. As much as you care, he wil need to work through this loss. Nine years is a long time- so i wouldn't expect him to bounce back quickly. When they say 'breaking up is hard to do' - it really is the truth. I know this is difficult.

Congratulations: So sorry to hear about this painful situation. Cograts on making a decision. Major changes like this are typically painful and there is a mourning period as you adjust to life in a new key. If you have a spiritual side, you might find "praying our goodbyes" a helpful book to support you during the process. It's not preachy. The very best to you as you move on to new life.