1. Locking the toilet is completely normal for a lot of women/people. My girlfriend for one. And you can't speak for everyone.
2. Changing sides of bed is not unprecedented. Did that very thing with my girlfriend due to a back-hip issue. Sucked, felt weird sleeping on the other side of the bed. On the other hand we travel a lot and often rotate when we travel so I can sleep closest to the bathroom. Not unprecedented.
3.Not hearing each other...if half asleep, groggy, totally normal.
4. He found the balcony, and then closed blinds and curtains...If he had gone "full recon," to get his gun he probably could have gone low on floor, and figured she was till in bed.
5. Scared gun nut? He's already in press from last year in a article talking about being startled by his washing machine and thinking he had an intruder. He is on record tweeting that he went into full recon mode. That's what's odd, he has a history of freaking out and thinking someone is in his house. Don't blame that on typical letsrun people. His history is part of what makes it weird.
And he could have been scared with a gun in his hand, no legs on, and living in SA.
Not saying it is all true. But it is possible.