I can so relate to having so called "friends" turn around and betray you. I've had that happen so many times that I'd rather not think about it much. As a result, I'm naturally suspicious and wary of people and their intentions. I don't usually open up to just anyone anymore. That's not to say I'm not polite and cordial around people, I just don't consider them at all worthy of my innermost affections until they somehow prove themselves to me.

I also can relate to simmering until exploding. I think that learning some ways to express the anger and resentment instead of just bottling it up until you reach the boiling point can be very beneficial. One way I do it is through the values and teachings of Yoga. I go to a class taught by a neighbor in my neighborhood community center, and I have never felt more in control of my emotions. Sure, I have a lot of work to do yet, as I am not always in control, but I'm more in control than I was before taking the class.

I think that if you started doing yoga, even at home by yourself, you would find it amazing. The benefits are so numerous I can't even begin to describe them.