Hmm, I am not much of a mind healer, so it is not my speciality, but I know a bit of it. I've dealt with people who are hurt like that, on my circuits, often in poorer areas of my country, or along the border of the theological state of Karsite.

But betrayal might not be the cause. It could easily stem, I think from experiences in your childhood such as how your parents treated you, if you had many friends as a child, that sort of thing.