I don't think the mother is bad. She did that for her child to have a good life. She knew that they won't abandon him that's why she told him not to look for her even if they abandon him to look bad. Then she gave her the ring for emergency, because she loves her child. I'm not a mother, but I know how to feel like one.
This is my gateway for being a fujoshi and for knowing the omegaworld.. I love it! Thank you so much, creator! I love you!