I wrote a story that starts like this:
My girlfriend, Hitomi, is in love with my elder brother. But refuses to accept it. Not in the sense that she doesn't want to reveal the truth---she doesn't know the truth herself.
Then in the final scene, I write:
The present, however, still haunted me. "Where's Satoshi?"
"At the apartment---oh, you won't believe what he did." Hitomi cupped my hands with her ice-cooled ones. "He did this and told me that he loved me."
"Really?" I said, coating my voice with faux surprise. "How ... did you reply?"
"How else? That I'm with you and that I love you.'' Hitomi bit the inner side of her cheek. "I think we got a big problem with Satoshi."
It took me a few seconds to digest this new reality. So perhaps I had been paranoid after all? I'd probably never know, which was probably for the best.
As you can see, the first bolded part doesn't match the second bolded part.
However, I wonder if this is permissible in first-person narration where the MC doesn't know what is going to happen at the end of his tale? (Or at least, wants the reader to think that?)