Wellington has no reason at all to hide his relationship with Simone.
I’ve no idea yet whether Dante is part of the conspiracy. I haven’t watched the latest episode , and others may be better informed ;-), but as of ep6, it’s only so far clear that Simone is involved. She might be a sleeper of four year’s standing, or she may have been bought off recently. (I suspect her stoicism after being beaten up suggests a bit of “background”, though!). Dante finding the background on Simone could simply be routine FBI stuff that any agent with access to personal records could dig up. I guess that’s why I disagree with Saul’s suggestion that Dante gave Simone to Carrie. If, as I think we all agree, it didn’t have to be Carrie that decided to look into Wellington’s associates, then we have to extend the same logic to Dante. It didn’t have to be him checking her out.
Yes. She could. And although it would still be damaging, my first thought would be, “Is this real or a set up?”.