After I read the suit, I was thinking the exact same thing, regarding what a woman in that position would do (speaking as a woman). It doesn't say anything about forcing entry etc. She basically opened doors and turned her back on him, as she walked into her bedroom. None of this account adds up.
As to your latter point, I could see that if someone is being "calculating." I also might see it if, for example, she wanted to "save face" from a family standpoint (that she let something happen that is considered unacceptable behavior.) It seems she took more "precautionary" behavior after the fact than beforehand.
Thanks, BTW, for pointing out that the suit was accessible to read in the original point. It was very enlightening.