Aside from the fact that you don't like to hear her cry (which, of course you don't!) is there actually a problem? I ask only because you're not really doing CIO. That is a form of sleep training where the child is crying because the parent is taking away something that they need/want to fall asleep. So the crying is because the child is upset about not getting something they want. As the child learns a new pattern, they no longer need the parent to fall asleep and they stop crying. However, your daughter seems to have the situation she wants - you said that she doesn't want to be held, rocked, etc. You don't know why she's crying, but it seems to work for her, even if you don't like it. Given that you really seem to be following your daughter's lead on this one, I would just keep doing what you're doing. Go in, check on her, let her know you love her and you're sad she's crying, but let her work it out and fall asleep. Although the crying is far from great, you really don't want her to force her to be dependent on you for sleep if she wants to do it on her own. It might end the crying now, but opens up a whole lot of other problems down the road. You can try moving bedtime around, because that might help, but it might not. No matter what anyone says, you are not neglecting/abusing your daughter. Some babies cry, you love her, you take care of her, and your relationship will be none worse for the wear.