Every single conversation where you ask for a shared relationship between the origins. They'll all shut it down, saying they want you and will not compromise, establishing mono.
It's a lot of dialogue, and it happens between a lot of different companions.
But we're talking about SH, right? She never agreed to be exclusive and indeed she is open to idea of involving others so . . .
I don't remember the conversation at the end of the Temple of Shar but I would have noticed if she said "only with you". If you have a video that contradicts it I'll watch but otherwise I think that an imagined conversation.
