This story is SICK! How could someone become so degenerate and his wife not suspect? This stuff is beyond belief (a toilet?), but seems par for the course for the homosexual lifestyle.
Maybe she wasn't into the relationship for the sexual aspect of it. He might have been bi just long enough to convince her that he could do it on their anniversary, and that was plenty for her. My first ex almost married a gay dental student who wanted a front marriage. I wish she had!