Translation of tercio

His name was Leo and he would become a good friend of mine during the next two weeks. He had a lovely girlfriend where he stayed during my visit. Basically, I slept in his place when he was away.
This perilous reaction, due to trivial, conventional thinking of us might lead to direct violence or at least to its support. Furthermore it can destroys one's good intensions and qualities.
He was hysterical, he got married two weeks earlier and already has lost his first wedding ring. How embarrassing is that? In addition, everybody on the ship heard it so that it was even more embarrassing.