I'm Not Good at Gossip

It recently dawn on me that I'm not good at the gossip game and often end up putting other people in trouble as a result of that. I'm a good listener which make people open up to me but I know there's going to be trouble as soon as they start saying something like "don't tell this person this but..." The trouble is I often end up telling that other person the very thing that I wasn't supposed to tell them. 

Why do I do this? I do it without realizing, I do it because I forget I'm not supposed to tell this particular thing. 

Now, before you start telling me I'm a bad person, I'm pretty vocal about my hate of gossip, and my complete dis-interest in it, but people choose to confine in me anyway - the risk is their own.

Gossip serves no purpose other than to, perhaps, provide a temporary relief to the person sharing it. The only thing I can think about, when people gossips with me, is what are they saying about me when I'm not around?

I hate gossip and if you choose to gossip with me then you should know that I have this flaw.