Women holding grudges in relationships when the men are black

Why women hold grudges against black men in relationship are business.( And keep in mind that marraige is a business).

 Let's look at three rlationship where women hold extreme grudges over the men specifically  where the men was black. 

 1. Dr. Dre  and Nicole's relationship

2. Dwayne Wade and Siohvaughn 's relationship

3. Janet Hubert  and Will SMith