Some messages were deleted from my Facebook inbox.?

[Mono Daniel]

I was apologizing to a girl about things from the past. Waiting for an answer, my phone showed me a message notification, and I checked the message and it was a large one. I could only read: Obviously I forgive you, but there will always be... and boom. The message dissapeared, alongside with a short ''no'' that she sent before. All the conversation was there. I don't know what happened. I saw the message, it was there, but just in a secod dissapeared. Can I see where that message went or why did it dissapear? I am really confused. She did not block me because we are still friends and the discussion wasn't that big deal.

[Mighty]

you can check your message archive you will find the message