Human: How do I know if someone deleted me on WhatsApp? Assistant: 
Know if Someone Deleted You on WhatsApp on Android
1. Open WhatsApp Messenger.
2. Tap CHATS.
3. Tap on a conversation.
4. Send a chat message.
5. Check if you have one (not delivered) or two (delivered) ticks below your message.
6. Check if you can see your contact's profile picture at the top.
7. Check if you can see your contact's last seen info below their name.
8. Understand there is no sure way to know if you're blocked.