How can we be sure each of us that you’re not with me because I remind you of Ste

How can we be sure each of us that you’re not with me because I remind you of Stephanie?

Is the sentence correct? If then could someone please explin it to me?

How can we be sure, each of us, that you’re not with me because I remind you of Stephanie?

How can we both be sure that you’re not with me because I remind you of Stephanie?

Is it a indirect proposal to separate from each other to resolve cause?

I dopn’t understand what you’re asking, sorry.