Family Issues Support Group
Family issues is a huge range that go from minor conflict to major misbehaviour and even abuse on the part of individual members of the family occur. Whether you feel you are in a dysfunctional family or you're dealing with a very specific issue, this is the place to talk about it and find others who might be going through the same thing.
I would invite them and accept their invitations on rare occasions. How rare? As rare as you feel comfortable. If they talk about you, so what? Tell them you're busy. Simple as that. Too busy to see them? Maybe but you don't have to insult them by putting it that way. You're just busy, that's all. If they learn to be decent and respectful toward you as you are toward them, then see them more. If they continue disrespecting you then see them less. It may take years but they will get the picture.
best if luck,
--EJ