Chris Brown and his publicist part ways

Chris Brown sure knows how to alienate people—heck, even the paid help is starting to jump ship.

In the wake of his Rihanna-related Good Morning America hissy fit (capped with a shirtless Brown smashing a plate-glate window in his dressing room), his publicist has bailed.

Still, all sides are insistent that the abrupt exit of Tammy Brook was unrelated to his morning-show meltdown. Believe it or not.

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According to a source close to Brown and familiar with the situation, Brook's departure had "nothing to do with GMA."

"The GMA gig was booked via [Brown's record company] Jive. Tammy wasn't even present," said the source.

Brook herself tells E! News that she was strictly hired to handle musical matters.

"I was hired as a publicist, as they often are, to work specifically on his music publicity for the term up to the release of Chris Brown's F.A.M.E. album, which was released on Tuesday and is entering the Billboard and iTunes charts at No. 1 this week," she said, working in one last plug.

"I love and support Chris and it has been an honor to be a part of this album and I look forward to the possibility of working with him again in the future."

It's worth noting, however, that before this week's escapades, Brook had asked to be called for comment on all Brown-related news.

In the immediate wake of this week's GMA tantrum, Brown hired crisis PR specialists Sitrick and Co. to handle the situation but the firm says it no longer is repping him.

Also at Brown's side is his longtime attorney Mark Geragos, who flew from L.A. to New York this week.

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At first defiant on Twitter, blaming GMA host Robin Roberts for antagonizing him, Brown has backtracked at bit, going on BET to (kinda) apologize.

All things considered, this week has turned into the public relations catastrophe we expected.

Not only did ABC not press charges, Roberts offered him an open invitation to return to GMA and "have another chat." And, despite some backlash among Dancing With the Stars fans, the network is stilly hyping his DWTS appearance next week as if nothing happened.

Who knows, maybe Brown doesn't need a PR pusher after all.

WATCH: Chris apologize for his crazy behavior