Dealing with a negative family member…or a person who just likes to put you down

I've been a ball of fire again for a few days courtesy of my brother... My wife found out they have it on Zillow already, listed for sale and hour before my wife seen the fake book post.. they supposedly had an open house Sunday. .
Like my own freaking brother can't call and TELL me???? And they ruined that house it looks like Hell now, being all flat white throughout.
They definitely made it a less attractive house...
There were some issues with it that needed to be fixed that I thought WE were going to work on over the winter and put it on the market in the spring.... The " realtor" seems to be some fly by night company from several states away....
The area code comes from VA and we're in Illinois..... My wife, my son and even my mother in law agree with me that they're trying to "pull" something.... They haven't called me in 6 weeks, aside from 1 text (which does not count as they know I loathe, despise texting).....the idiots should have waited til close to when school ends for the season to list it.... My older brother was saying that when I last heard from him as well ... He's supposed to be "in charge" but somehow let the little brother and his wife take over and run EVERYTHING..... And I'm stuck here as the middle brother...