This is one of the most humiliating things ever to endure. First, you try to ignore that humungous booger that is plugging up your nose hole, then you accidentally breathe air against it, creating a highly visible snot bubble, which all can see.
You hope you might just be able to distract them, while praying they have the grace to pretend they have not seen it, the monster which resides in your nose... It is waiting to peek out at them again, and you dread the moment with every fiber in your being, Then a light bulb goes off in your head. The brilliant idea? A sneaky hand swipe, a move that feigns, 'Hey, my cheek itches', and in the shadows, BAM! Back of the hand rubs the nose as you move your hand away, thus clearing your bogie. Smooth move, right? It's gone! You're free!
That little green fucker is still there, and your friend loses their ability to hold back how gross it is. They wonder if you haven't noticed, and they make the situation worse by pointing it out.
Then this happens:
At this point, you are royally screwed. He will never want to date / marry you unless he is one tough, badass mothefucker with a stomach made of iron and an immune system that incinerates germs like fire does marshmallows.
But this is much more likely: