Also agree with Darran, a bit anyway.
I have helped guys setup and gave them equipment ect, but I would never discuss a job or jobs that am after unless I have them tied up, I think that's where you went wrong.
It's one thing helping a guy out, but if your going to feed him your leads at some point he's guna think he can cut you out.
I have loads of jobs am interested in, and some that I have discussed possible prices with, but I wouldn't go shouting from the roof tops what they are until I have sewn it up.
And then the world can know.