app/views/relationships/_unfollow.html.haml
= form_with model: current_user.following?(user), method: :delete,
id: dom_id(user, "unfollow_form"), local: false do |f|
= render 'notifications/error_messages', object: f.object
.actions
= f.submit 'Unfollow', class: 'btn btn-secondary btn-lg'