What do you think of the possibility that she did everything in the bathroom, but dragged him down the hall cause she actually thought she could get his dead body out of the house--realized she couldn't--and dragged him back into the shower?
I was toying with that, think she would have let his head rest on the carpet, and exhausted, realized she couldn't roll him up in a blanket and take him to the desert as she might have thought.
I know it would be daylight, but I heard of someone putting a dead body in a sewer in behind his neighborhood in broad daylight. Maybe she could have planned to back travis' car out and put hers in so she could load him, but she just wasn't strong enough.
Just a theory because I don't get why there's blood low on the wall on both sides of the hallway unless she's dragging him against the walls in one direction and then back down in another.