The simple past of burn is burnt
The friar states that "violent delights have violent ends," meaning that anything so intense and passionate will die just as passionately. He is also concerned that Romeo and Juliet will burn themselves out on one another, like "fire and powder.
and
they describe them passionately
In the world’s rainforest, nearly 1 hectare is destroyed per second. This adds up to nearly 31 million hectares per year; the size bigger than Poland. As a result, the environment is being damaged: 137 species of wildlife are becoming extinct per year. Humans are benefiting from this destruction by making a profit off logging and making cheap products.
Theseus actions portray him as a hero. He is brave and risks his life to free his people. Even though he personally is not harmed he decides to help and free the Minotaur's captives with disregard to his safety.