Hi Ro, boy this SERIOUS thread sure took a whooping today. Sorry about your sponsee, its so easy to look for resentments, huh.
Least set them boundaries and like Ro said, stick to them. Its really the only way. I know when my kids were younger and also now many times, if I ignore them, since that's the only thing I can do since they drive and can cook or really order food and pay for it themselves, I ignore them and it kills them. So stick to your guns hunny and please don't allow them to make you feel so bad. You are loved because you are a very loving and giving person and don't forget that.