Yeah, we've told to many. She's bound to find out eventually, or we'll have to start acting again and then everyone else will ask questions.
We need to decide if we want to just pretend that she's getting memories where we aren't asking very close or if we want to make up a cover story as to why we were hiding our relationship. The first one is riskier if she remembers us outright denying it, like what happened in the engine room, but it is simpler. We have to be really careful with the coverstory too.