"Bitter recriminations" refers to strong and angry accusations or blame exchanged between people, often accompanied by feelings of resentment and hostility. Full definition
But then there's the real world, the world of bitter recriminations following an affair, substance abuse or debt or violence. (remonline.com)
In the public square, both left and right have generally degenerated to the level of shouting angry soundbites and indulging in bitter recrimination. (firstthings.com)
A yes vote would indeed cause bitter recriminations within the Tory ranks — a prospect which both sides of Labour could enjoy — but Polly Toynbee also adds that: (leftfutures.org)