Nobody here can tell anyone else where they are allowed or not allowed to post.
If you guys have some sort of problem you have two choices:
A. Work it out privately, but keep it off this forum.
B. Stay mad at each other, but keep it off this forum.
Whatever personal nonsense you two have between each other, it's not appropriate, or wanted, here.
If you keep on acting like a couple of 12-year olds here, you'll both be shut down and your posts will be deleted.