I read that Hicks had been questioned or was going to be questioned by the Mueller team.
Wherever I read this said the questions were going to be (or was) "Would you ever lie for the president?".
IOW, perjury trap bullshit. If she answers yes, (white lie; "he's not here now" when he is and doesn't want to take the call, for example) she's painted as a liar, if she says no, then they pin her with lying to investigators (like Flynn). So I think, if this is true, it shows whose team the investigators side on. They had to show their colors to get to Hicks
Porter was twice divorced and was called out by his exes for DV. So no extramarital, just a potential romance, if anything. Read it was just at the thinking about it stage, also. Don't know for sure, but she never seemed too upset. Also think Trump would be on that stuff like he would for Ivanka or Tiffany.
Still thinking it's just time to move Hicks back from the front lines. She drew out the bad guys.
Just my take. The whole 'affair' stuff is a type of thing that everyone just assumes is what happened. Don't have to think too hard about it all. Not saying it isn't correct, just that there's a lot of other stuff out there that could explain it.