Here is a case in point....
Friend just had their first baby...a baby girl. I have all my DDs clothes left from 0000 to size 1 and gave them the lot as they had nothing (I assumed). They profusley thanks me and even said theu had nothing.
So just heard from my SIL that the friend said she has been given so much stuff that all the things I have given her she has given to her friend that is having a garage sale so she can sell all the stuff!
If she didnt want it give it back! There were heaps of near new stuff and sleeping bags that I was going to sell myself that I thought I would be a good friend and give it to her. Just would have been nice if she had of said..."gosh there is so much...I dont need it all. Do you want it back?" Thats what I would have done in that situation.
So OP I feel for you. Its pretty obvious she has broken/lost the baby bath. She should just own up. What is she...5 years old? Say sorry...give you some money to cover it and its done.