"We're so over!" - a question about English

What are idiomatic and mataphorical expressions for telling a person that "we're over?", meaning "our relationships are over"? I'm interested in both cliches and original versions, but understandable for the other party.

I don't need it for any practical needs, I have a pure theoretical interest :)

Thanks in advance, mes amis.

UPD. I'm also looking for idiomatic, metaphorical and/or funny ways of telling a person "I don't love you anymore"