move on

Two years ago the love of my life took an drugs overdose. He has heavily in to drugs and really depressed. No one knows if he meant to kill himself but he did. There was no note left and i had spoken to him earlier in the day and i honestly believe it was an accident.
I had tried time and time again to try and get him off drugs but nothing i said or did helped. Heroin is a powerfull drug, more powerfull than love. So i just stuck by him, and we loved each other so much, even when things were really bad fo him he always treated me like a princess.
But its been two years now and i havnt had a proper relationship since he died. I still feel like im betraying him. So i want to try and move on. Im not going to go out looking for a relationship but if something comes along im going to go with it. Its going to be hard but i think its time to start living again.