Earlier this week rapper Future went ballistic on his baby mama, pop star Ciara, in a messy tantrum on social media [click here if you missed that].
Now we know why...
Insiders tell TMZ Future was upset because Ciara promised to allow their son to spend Christmas with him and all his other kids but then refused to hand him over.
The source claims Future believes Ciara is just bitter about the end of their relationship and that he is considering getting the courts involved to hammer out a custody agreement.
