LOST LOVE; how to access search history on iphone facebook app??

hi one and all.

This is the first time I've posted something like this, but I really need some help.

I searched a profile in the facebook app on my iPhone on the 13th of November, found it, clicked on it, but didn't add friend.

Now I've forgotten the last name and was looking in the activity log and "include only me activity" (the one that shows what you searched for) but since I searched in the app it doesn't show my searches from the iphone, only the ones I make from a computer.

How do I find this one profile I found?? I know the exact date and time I searched and saw it too. 13th November between 7-8am in Thailand (+7GMT)

I thought maybe someone would know a way to access what's been viewed on my iphone that day.. (the good thing about big brother watching it's that hopefully he'll have saved it!)

The reason I want to know is because I think I found my soulmate.
Sometimes you just know, you know? And I knew.
But now my mind is empty and my heart filled with regret and I just need some help. Any help.

If you can do this, I promise our first born shall have your name!

thank you.