The veteran, who has won 25 times on the European Tour alongside a glittering Ryder Cup career, appeared to stoke tensions before the first Rolex Series event of 2023.
He accused the PGA of "forcing the hand" of its top stars to appear in their elevated events which has led to significantly weaker fields on the DP World Tour.
Westwood described that and the debacle over the Official World Golf Rankings as a "double whammy" for the tour.
The Englishman now faces the prospect of being permanently banned from the tour next month.
A sports arbitration panel will determine whether Wentworth HQ has the legal power to permanently ban LIV players in a five-day hearing from 6 February.
As many as 16 players took their case to Sports Resolutions UK after the circuit announced suspensions and £100,000 fines for those who teed it up in LIV Golf's inaugural event last June.
It has now emerged that Sergio Garcia, Branden Grace and Charl Schwartzel have withdrawn their appeals.
Westwood said he wouldn't "play the guessing game" over what way things will go, but added:
Pelley did not name Westwood directly but confirmed to reporters in Abu Dhabi last week that a player had "upset staff".
The chief executive said:
Pelley said that he has written a memo to DP World Tour members ahead of the legal showdown, claiming the response was positive.
For Westwood's part, he has maintained no player has said anything directly to his face about his decision to join LIV Golf.
Westwood has previously stated that the vitriol has come from one direction and accused the DP World Tour of spreading anti-LIV Golf propaganda.
Another player facing the prospect of being permanently suspended from the DP World Tour is Ian Poulter.
Speaking last week, Poulter said the "full story" has not yet been told as he revealed he would potentially snub the Ryder Cup even if he were to qualify automatically.