Now this girl's mother has asked me to get involved. The first years of school are critical in forming good work habits and attitudes. Erlyne Osburn, an elementary teacher with a background in both public and private schools, is here to help you do everything you can to enhance your child's education. I understand your feelings. The compassion that you feel for the girl is clear, but it appears that she may have brought this upon herself with her own behavior.
People get tired of being around others who are constantly seeking ways to get attention.
Friends are supportive of each other and need to maintain a two way street of support. If your child feels that she is not given the attention and support in return for the attention and support that she has provided for this girl over the years, I can see why she might abandon her friendship with this young lady. At this point, you appear to have been on the outside of this problem. I think it would be a good idea for you to continue to observe without interference and let the kids try to work out the problem themselves. Perhaps the true underlying factor in the change is simply the fact that the kids have changed.