Re: Arrivals.
It's entirely fine you never need to apologize for not knowing my characters particular dramas!
Emma and Scott were together for a long time and have a complicated relationship. He died before she arrived here and she kinda snapped because of it. Like. She's a criminal back home now. Upon getting here, he's beeen trying to act normal with her like everything's fine. But he's also with Jean (Emma doesn't really approve) and he got Jean preganant (Emma really doesn't approve). But the kicker is that he didn't tell her before they made their announcement so Emma is basically at the bridge burning part of their relationship because she sees that as deeply and personally insulting. And she's been through a lot for him and sees it as a waste.
When mycroft picks up on any/all of this, she'll just laugh and say she has the worst taste in men.