Michael Jackson, at one point in his life, was totally in love with Diana Ross… They started out as friends, but that grew into love. After he was old enough, of course, she returned the adult love in kind. They had a lot in common and Michael adored her. He had not the ability to convey his emotions to her in a manner which told her exactly how he felt. He started to become very shy in the late 80s and early 90s to the point where he wore sunglasses everywhere and would not take them off. He was very "submissive" to those around him.
(Michael was either stunted in his ability to interact with women on a romantic level or he was endearingly old-fashioned in his approach. Either way, the women he dated thought they were just friends or they had to make the "move" themselves. He admitted that he never asked a woman out… That they had to ask him.)
However, while in love with Diana, she told him "behind closed doors" that they would be together forever… even get married. Diana [publicly] made it known that she thought that Michael was "sexy" and she was very into him… As time went on, she could not handle the fact that he was so so shy as far as their intimate relationship was concerned.
She eventually left the country, met, fell in love with and married another man. She didn't even so much as "hint" to Michael that she did not want to be with him anymore. She simply abandon him. ( hence; "Who is it?" ) His heart was totally broken and it took him years to get over her. Not only did he have feelings for her for a long time, it was trouble for all the relationships he would try to enter because he still loved her. He eventually got over her… Somehow… But, in the interim, he was very sad and he longed for her.
Diana was interviewed once, and she said of her husband, "I like a man that has his own self-esteem"… That sent a message that she was uneasy/displeased with Michael's shyness and did not want to marry him. (Personally, I think that's a crock… But that was her excuse. If you love somebody, you don't stop loving them because something happens in their lives that makes them become shy… It just makes no sense to me... other than she was just selfish and would have rather have had him out on "her arm" all the time rather than alone at home, etc.)
Even in the video, that seemed to present the goings on of "high end escorts"...the golden credit card-like " Business cards" that the escort handed out had the name 'Diana' on it. Also, when the "John" was shown, his name was 'Adam.' Diana's husband's name was Arne ( of course, Michael wasn't going to use his real name in his music video )... but, it had four letters and started with "A".
I think the song pretty much sums up how he felt about her....and then how felt once he was "abandoned" by her. He was SO HURT, I think the "escort" approach to the video was a "stick it to her", knee jerk reaction .
Once her husband died, their friendship ensued.
