Is your LO dependent on either you or your DH? Dh does part of bedtime routine, but the actual putting her in bed, reading final book, singing, lights out, is me. She always insists that it is me, has started freaking out if DH goes into her room and appears to be encroaching on bedtime - 'Daddy leave, mommy only' type stuff. It would be nice if DH could put her to bed, maybe I just need to be tougher? She cries really hard for me though, and while I could do CIO when she was smaller the toddler CIO is really tough for me to ignore (the mommy please pleading is a killer).