separate table for fa post favs

config/routes.rb

@@ -58,9 +58,15 @@ Rails.application.routes.draw do
     end
 
     resources :posts, only: [], controller: "domain/posts", path: "" do
-      get :favorites, on: :collection, action: :user_favorite_posts
       get :posts, on: :collection, action: :user_created_posts
     end
+
+    resources :user_post_favs,
+              only: %i[],
+              controller: "domain/user_post_favs",
+              path: "" do
+      get :favorites, on: :collection
+    end
   end
 
   resources :posts,