"I'm a great girlfriend. And wife. Just picked the wrong f-cking guys."
And about her being a great girlfriend/wife. I feel like that's her way of absolving herself of responsibility. On some level, we all did/do the best we can in relationships, and that's all we can do--but we don't do that 100% of the time. And no matter how a relationship ended, whether or not it was 'your' fault, I think you can always find something that you can work on. Something that you can learn from, and avoid in your next relationship. Basically--I'm sure Mark Anthony is not a basket of sunshine and roses 100% of the time. And neither is J-Lo.