On the issue of Deceit and Trust?

Sadly it has come to pass a social activity I am involved with. to have invested a great deal of time and energy has become threatened due to my disagreement with the leader of the activity group over one thing I have a great deal of difficulty dealing with, that thing being deceit.

Now it appears to myself no other or at least none others that are saying have a problem with that deceit, to wonder am I wrong in expecting better of one that purports to lead ?

For in it is the issue of trust where I find I just can't trust someone of whom has deceived me, not once, but twice.