My daughter is 3 weeks old and her dad left me when she was 10 days old. His mom wants her to stay the night and believes he has every right to keep her for the night. Am I being the bad guy for saying no because she is way too young to be away from her mom! I have done everything on my own since he left. I would never be away from her for a night. It was his choice to leave us, not mine. He can come see her any time he wants but I'm not letting them keep her for the night. Am I being a bitch? Honest opinions please!