
Spoiler
Yes will
There is misunderstanding
I think when ido sa him ido asked him .. him who did .. this but seeing... was going through a lot so he .. said "I did with your brother " something as if he did it willing which cause misunderstanding and other factor triggering ido ...to sa ... but still it doesn't justify the SA but .. if only they both had been honest .... man ... well I thinking redemption arc in this manhwa is good .. fitting ...

Second is true! He never mocked the unborn child
Sejin couldn’t live with himself carrying the baby to term with the inkling that it could be that bastard’s baby..
Ido later tells him that it was their baby in which Ido bawls and Sejin just reacts to it. It’s probably gonna be a whole episode I think
So spoil me please, from what I read in comments in next chapters Ido gonna SA Sejin, it sounds like he just absolutely didn’t care what his brother raped Sejin. Is this how it is? Cause it’s hard to imagine how could he not know. But it would be better then not caring.
UPD.Also people tell two different versions of the first life from novel. First version, Ido mocked Sejin after they found out his pregnant saying stuff like it’s his brother child or smth, and second version in which Ido already knew everything by the time pregnancy came up and was acting regretfully. Which is true?