I keep everything online separate from my significant other; she doesn't go online, she doesn't understand online, and I do not wish to enlighten her as to online, nor take the time and effort to do it... it is just simpler this way.
Besides, I don't go online when she's around, anyway.
If she asks, then I mention it, but I don't go into detail. She wouldn't fit this type of environment, anyway, as she cannot construct a comprehensible sentence, let alone Role-Play.