I hope parliament is permitted a vote by its Speaker. It sounds like he plans to prevent it, in spite of the recent arguments of Remainers about allowing democracy through the expression of the will of parliament.
If the deal fails because the Northern Irish reject it, so be it. No bad blood.
If parliament is not allowed to vote, then there will be very bad blood. Utterly hypocritical. To me, treacherous.
Some Brexiter with the flu may decide to cough on the Speaker.