He wasnt in the bed, he got up to close a door when he heard the noise, he left Reeva in the bed when he got up..she may have got up without his knowledge to use the loo when he was closing the door. So in essence, as far as he was concerned when he heard the noise, Reeva was asleep in bed. Thats possibly why he "shouted" at her to call police- to wake her up?? Im really beginning to believe that reeva didnt shout back at OP because after hearing his screams, she ALSO thought there was an intruder in the home.
In SA and especially JHB/Pretoria, most people live with a very high sense of alertness to their surroundings..most urban homes have electric fencing, high walls and children DO NOT play in the street..its a way of life. Home invasions are an every day occurance and everyone has been effected by it..(via family, friends etc who have been hijacked, robbed or had their homes invaded while they are home)
What noise could he have heard then? Nobody else but two of them were there. How would she have gotten into the bathroom past him if he heard the noise and went to investigate? If she was in bed when he got up, how did she end up in the bathroom? His complex has security guards. So why does he think that noise in a bathroom is an intruder?