how does Felix's mood change, how does he act upon the guest's arrival?( Support with quote)

‘Felix seemed ravished with delight when he saw her, every trait of sorrow vanished from his face, and it instantly expressed a degree of ecstatic joy, of which I could hardly have believed it capable; his eyes sparkled, as his cheek

flushed with pleasure; and at that moment I thought him as beautiful as the stranger.' (Chapter 13)