Kelly Rowland jealous

Kelly Rowland jealous, Kelly Rowland just released her latest song "dirty laundry" from her upcoming album "Talk A Good Game". In the emotionally explicit song, Kelly sings about abusive relationship, and her being happy at the same time jealous of Beyonce's success after Destiny Childs split.
One lyric is particularly revealing;

"When my sister was on stage killin' it like a motherfucker
I was enraged, feelin' it like a motherfucker
Bird in a cage
You would never know what I was dealin' with
Went our separate ways but I was happy she was killin' it
Bittersweet
She was up, I was down
No lie, I feel good for her but what do I do now?"

The track is produced by Beyonce's frequent collaborator The-Dream.