Ok, here is what I do not understand.. everyone claims she was sooo into Tony, killed her baby to be with him and all but- she was with other men within the same time frame! I don't think she was as invested in Tony as everyone thinks... he was one of several at the same time, IMO. She was even leading Will on during this time- talking to him on the cell until Tony got off the plane!
I agree. She was definitely a player and Tony was just another poor soul caught up in her game.
I think more than anything, she was realizing just how much Caylee was cramping her style. I don't think she appreciated the rejection (or at least partial rejection) of Tony telling her that Caylee wasn't welcome to hang out and sleep at his place at night. She'd heard as much from Tony R., and there it was again, from Tony L. That said, I don't think she directed anger at either guy for this. Any ill feelings about that were centered around poor little Caylee. If she killed Caylee intentionally, she did it for none other than herself...to be free of her burden and be with whomever she pleased, when ever she pleased.