Egomania is basically intolerably self-centred. In a more technical sense, it's an obsession -- an obsessive preoccupation with one's own self, usually in the form of following own impulses and have delusions of grandeur.
Megalomania is a rather loose term, and usually means have delusional fantasies of omnipotence (having unlimited or very great power, whatever 'power' might mean to that person). Interestingly, megalomania was the standard term for narcissistic personality disorder before the 1960s (so far as I recall from my psychology degree over 30 years ago).
He wasn't invited and was love sick <span />
Answer:
When the actor bowed, she was radiant with joy.
Explanation:
Radiant-
Very excited, happy, or ecstatic.
Shining or glowing bright.
Today is thursday and tomorrow is Friday
