Yeah I think splashing the water on her might lock you out of it. You probably need to reset recruit data. Apartment map data might work, but I wouldn't know for sure, recruit data is a safer bet.
I've never gotten around to splashing the cum water myself, but I was planning on doing that. Fortunately for me, I wanted to see if it was possible to have sex with her when she was unconscious first, so I inadvertently saved myself from having to reset.