Swenson’s curiosity

From what I understand it would appear that even though what transpired between Swenson and Angela was wrong he was trying to “feel Angela out” meaning see where her headspace is at after they have had sex. It’s as if he was doing a mere observation of her, analyzing her; so as to see if she gave off some form of impression that she’d like to have sex with him again. He would have hope to determine whether there would be an end or it would be continuous. Angela however, pretended as nothing transpired between them but there were implications that something had changed because she had seemingly lost respect for him. She used cursed words as though she was now in some form of control. Her behavior altogether after what happened between them both placed some weirdness in the atmosphere. Things were never the same.