Josef Haydn (Yes, I know it was "Franz Josef Haydn," but
he didn't know it) was irrepressibly optimistic. With sore difficulties wracking his childhood (
"I received more floggings than food") he came out beaming with happiness in his demeanor, his conversation and of course in his music. He was socially successful because of this point. Constantly negative people drain so much energy it's depressing just to talk to them, But Haydn, the lighthearted prankster made friends right and left that helped him succeed in spite of coming out of low socioeconomic circumstances, which, I might add, may have been stacks harder to combat in that day.
But it wasn't all sunbeams for Haydn the adult either- He missed the mark big time in one respect: His wife. Oops. Haydn loved a girl who was unfortunately predestined by her family to a nunnery, so she was packed off to the nunnery, much to Haydn's disappointment. Her sister was available. So he went for her instead. After their marriage he found she had... not a lot of respect for music or composition or composers or manuscripts or any such thing which made things really hard for her musical, composing, manuscript writing husband because their living depended on his success and his success depended on

his manuscripts that were too often taken from his writing desk and ending up lining her muffin tins and ending up as curl-papers for Mrs. Haydn's coiffure. I am Dead Serious. This really happened. This is one of those situations that would make even the most hardened marriage counselor's jaw drop. Well, needless to say, their relationship did not flourish because she was like this on a regular basis. They separated, whether amicably or not I cannot tell, but he supported her comfortably in her own home and regarded himself as a married man the rest of his life. This I really, really respect about him: Haydn wrote to a friend who was suggesting the beginning of a relationship between Haydn and one of his students, a rich, handsome widow who obviously preferred him:
"I am not a free man." Haydn recognized that vows are forever.