The text and emoji-only messages go through a special Facebook Dating chat section, not Messenger, and land in the recipients Interested tab with no read receipts. If they reply, the chat moves to both peoples Conversations tab.

How do u know if someone blocked you on match?

You wont get notified automatically if someone blocks you. But you will see a notification if you try to send them a message. But you will see a notification if you try to send them a message.