Dear B., take a few minutes to read a short story
after you laid down your daughter. Calmly, place her on her crib, sit down on a chair or stand along the bedroom wall and read the story in a soothing voice, even is she begins to scream or play...once the book is read say good night and leave. Your baby will realized soon enough that if she makes noise, she won't hear you. Read the same book every night, since they like repetition...do not let her choose the book, you do it. At 2 1/2 yrs. old kids may suffer separation anxiety. One doctor told me that as a mom desapears, the child feels as if you're going away for ever....of course some kids are the exception and they'd like to have all the control. So give it a try, tell your baby good night with the sweetest voice she knows! Say good night and tell her love her. And then go, take a load off!
Good night!