Translation of chivalrous in Spanish

She suddenly had to vomit and unfortunately she vomited on the new shoes of our friend and on her new Jeans. It was very embarrassing, especially because we were treated so well by this nice young man.
Thank you for your kind mail. I guess that we are friends now! The last winter was extremely cold. Now in Summer the weather is nice. My English is terrible but i hope that you will give me a chance.
While waiting for the counter to open, my wife developed a stomach ache. The plane took of at around 4 or 5 pm and landed around 2 hours later at the airport of Santiago de Chile. It was already dark.