The resale value of the 5-7 year old B737-800 was a large factor in the Boeing order. Not so sure second hand nearly new untried Russian aircraft have quite the same impact on the balance sheet.
They pulled out and now they are back. They got a better deal so they are back but for how long??
Ryanair at no time have suspended operations from Manchester Airport. They merely pulled back frequency on the core MAN-DUB route and shouted a lot that they wouldn't expand. Until they do. Which is now. (that's enough of that - Ed)