Michael O'Leary, chief of Ryanair has lashed out at Boeing calling the US planemaker "delusionary" for imposing what he terms a double-digit percentage price hike for 737 MAX 10 jets in talks earlier this year. According to Reuters, chief executive, Mr. O'Leary said Boeing needed to "get its shit together" referencing what he said were delays in the delivery of 65 aircraft from an existing MAX order. A Boeing spokesperson told Reuters that it was committed to supporting Ryanair as a long-standing partner, but added it would "continue to be disciplined" in commercial decisions. Talks between Ryanair and Boeing ended abruptly in September over a large order for 737 MAX 10 jets over price. Reuters reported that Mr. O'Leary said Monday that Boeing's approach was "delusionary". "Boeing out of the blue sought a ... substantial double-digit price increase. I don't understand the strategy," he told Reuters. Mr. O'Leary said he was having a "marital tantrum" with Boeing. O'Leary in September said Ryanair had been in talks to order at least 100 of the 230-seat MAX 10. Sources say the dispute over MAX 10 was already rumbling when Ryanair ordered 75 more of the smaller MAX 8-200 version in December last year. For more on the story click here.