It really did not take long before the "you need to move on" brigade got going and the "Dad's rights" brigade.
No one ever gets over finding out their other half has had / is having an affair - be that man or woman.
No one ever gets over finding out that the OW/OM is going to have an influence on your DCs. It is not gender related.
I have moved on but, there is a little part of me that struggles to trust and always will.
As to facing difficult questions from DCs later in life, get real Wakey! Since when does a useless parent of either sex, who can barely manage to do contact on normal days - get the right to dictate on the best days. I do every other, strictly and no deviation so far. Does it suck, yes it sodding well does, last year Ex managed 16 days of contact - but expected b days and Xmas, then wanted New Year aswell. So out side of special days he managed 8 days of non special day contact - get a life. The OP is being reasonable, her twunt is not
I do the best for my DCs, 365 days of the year, I suck it up and hurt in private - so dickhead and his OW can play happy families on certain days of the year. The DCS know already at 6 and 4, they are only welcome when it suits, when there is enough space in the car for all the DCS to fit - ie, never, when .................This year they want to spend Xmas with me, whilst EX creates merry hell because he has a new DC with OW and would it be nice for them all to spend Xmas together - not it would not. I am not being unreasonable, no I am not changing for this year, because next year will be another excuse and another and another - like there always bloody is.