ug. sounds familiar to me! my LO has been funny about bedtime. will she eventually go to sleep by herself? or do you have to go in and help her?
sometimes my LO will be up in his bed for 30 minutes rolling around before he falls asleep, but I don't have to go to him, so we leave him to settle himself. I find that teething has been an issue lately with us - and he is super tired when he is teething and needs to go to bed early some days.
I think it could be time for a routine change -- what is your current EASY?
I think it depends on the temperment of your LO - mine will just stay up and "play" in his crib if I put him to bed undertired, but will cry if we put him to bed OT.