Sure, here's the translation of the given text:
Turstin Muller stared at Valentine Teller's shy head, finding her incredibly adorable.
Suddenly, a rush of heat surged through his head and into his nose.
"Oh dear!" Turstin thought to himself in alarm, fleeing the balcony before his nose started bleeding and rushing into the bathroom, covering his nose.
Looking at his blood-streaked face in the mirror, he laughed at himself mockingly.
What a lack of composure! At this rate, how could he ever get married and have children—a blood loss might kill him before that day comes.
Turstin stuffed a small wad of tissue into his nose, washed away the blood smeared on his face, and sat on the toilet.
Only when the nosebleed stopped did he remove the tissue and walk out of the bathroom, unable to hide his embarrassment as he faced Valentine Teller again.
