I don't see why a song can't have more than one meaning. I've always interpreted the song through two ways: there's the side of him discussing a girl, but you could also interpret a lot of the lyrics as him talking in regards to the media.
I don't care what you talking
'Bout baby
I don't care what you say [He doesn't give a shit what the tabloids are saying about him]
Don't you come walking
Begging back mama
I don't care anyway [They always come back to him and ask him for interviews, exclusives anyway. MJ rarely gave interviews]
Time after time i gave you all of my money [While Michael isn't exactly giving them money literally so to speak, he is making them a lot of money]
No excuses to make
Ain’t no mountain that i
Can't climb baby
All is going my way [Regardless, everything is still going his way and he's making milestones in the music industry]
[Verse 2]
There was a time I used to
Say girl I need you
But who is sorry now
You really hurt, you used to
Take and deceive me
Now who is sorry now
You got a way of making me
Feel so sorry I found out right away
Don't you come walking
Begging I aren’t loving you
Don't you get in my way
For the second verse above, I see it in the way that, before Thriller, Michael did need the media to help promote his music. We all know the story of Rolling Stone rejecting him in '79-'80 or whatever and there's no doubt more stories similar to that (like MTV). They used to really hurt him by not treating him with the same amount of respect as other big artists, as well as by making up false rumours about him. But they're sorry now because they need MJ to sell covers and probably used all sorts of methods to persuade him to come do interviews/photo shoots for them. And this is 1980s Michael Jackson, the juggernaut who didn't need to give exclusive info to the media to sell records, so he is now in the position of power to tell them to not get in his way.