She was complicit and fully aware of what was happening but I wouldn't be shocked if she was forced in to that position by the label/managers, specifically Tomato. Let's not forget it wasn't just Mari
Short but to the point!
Yes, JLo did Moo dirty, and she will have to live with that guilt for the rest of her life.
But Moo has a grudge that doesn't end, once she hates someone, she will never make up with them.