There is no reliable information on the current state of the relationship between Kate Gosselin and Jodi, or her husband Kevin.
Other speculation regarding their actions are not relevent to this answer.
Jodi is married to Kate's brother Kevin, so Jodi's last name Kreider.
She recently reconciled with Jon! Her kids got to see the Gosselin kids...for the first time in a year!
Aunt Jodi's sister's name is Julie.
This is a common myth, there is no Julie in the Gosselin family. You are probably looking for Truthbreedshatred, which is a blog created by Julie who is "Aunt Jodi's" sister. Aunt Jodi is married to Kate Gosselin's brother Kevin. Her sister Julie created a blog addressing concerns about her sister, the Gosselins and their children. (Confused yet? Good!) See related links for a link to Julie's blog.
If Aunt Jodi has a blog, it is not known. However, her sister Julie does have a blog (see related link below) and Jodi has made an appearance in it. If Kate Gosselin's sister-in-law Jodi has a blog, it is not public. See Related links for a link to Jodi's Sister's blog.
At one time, Kate was very close to her brother and Aunt Jodi. You can still see Jodi on many episodes watching the children for Jon and Kate. When the Gosselins moved from their "first house" - they selected a home minutes away from Kevin and Aunt Jodi. Recent events, seen both during 'Jon and Kate Plus 8' episodes and exposed in a variety of tabloid interviews and videos indicate that the relationship is no longer close. Kevin and Jodi have emphasized their continued support of the family and concern for the children, while acknowledging the relationship is strained and difficult.
If Aunt Jodi has a blog, it is not known. However, her sister Julie does have a blog http://truthbreedshatred.blogspot.com/ and Jodi has made an appearance on it.
Kate's brother, Kevin, is married to Jodi.
Julie is the sister of Kate's sister-in-law Jodi. Kate's brother Kevin is married to Jodi, and Julie is Jodi's sister. Kate's brother Kevin married jodi. Julie is jodi's sister.
Aunt Jodie is married to Kate's brother.
Mady Gosselin and her siblings have at least four cousins. They are the children of Kate's brother Kevin and his wife Jodi.
Kate's brother is named Kevin,his wife is Jodi.