What's the difference between when a person mute you versus when they ignore you and when someone removes you on Facebook Messenger?

I've been told that you are moved to spam as a message request someone has ignored or meet you. And when you remove someone from Messenger as far as disconnecting them to contact you. Does that typically show on their end. Like me and a person on messenger are having a bit of an issue and I think that my message has either been ignored or mute. But it still says connected when I type there name. What can it be?
What's the difference between when a person mute you versus when they ignore you and when someone removes you on Facebook Messenger?
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