Thanks for the explanation I (wrongly) assumed it was somewhat of an umbrella term for a marriage that’s basically an arrangement for what ever reason (gay, wanting to portray a certain ‘family man’ image etc).
My opinion at the moment is that Steph knew and it was an arrangement from the start. Maybe she wanted the nice life and kids but wasn’t fussed about having a ‘real’ husband. Could be wrong of course because non of us really know for sure when it comes to their marriage. Just the fact that back then people knew he was gay makes me think she can’t have possibly not known but like you say she could have thought he would ‘change’ or maybe he really did make her think he wasn’t - we all know how good at manipulation he is.
Regardless, I think there’s a lot of

when it comes to their marriage maybe it’ll all come out one day maybe it won’t.