Having trouble with broker/s

It sounds like you have answered your own question. If they are manipulative and their listings are being taken away (more likely, the exclusive period is over and the sellers are not renewing) then people are probably just deciding to to use other brokers they get along with.

Regardless of whether you are using them or not, if you ever have trouble with a broker while you have an exclusive agreement, it never hurts to simply ask to end the exclusive early instead of riding out your 6 months (or whatever length the agreement is for) and potentially losing a sale during that period.

(Matthew Russell - Brown Harris Stevens)

The strange thing is that the listings seem to be taken from them only after a couple of weeks after the initial agreement. This couple somehow set the radar off, and I thought it might be just me but what's with their listings (multiple!) disappearing before the exclusive runs out? Is it normal? I'm talking about a potential deal of $1.7M.

maybe they are a-holes. nobody likes working with an a-hole.