As other definitions have pointed out: women may also employ this phrase, however this is not something to scorn them for; many of us suffer from ignorance of alien-cultures.
British: Toodle-pip old chum; it's been marvelous, much love to you.
Woman: Ha, ha, that is so funny, much love Jimmy; must dash.
Italian: Il nostro amore è la cosa più importantissima nella mia vita. Io brucio per amore di voi. Tu sei con me ovunque io vada. Ora e per sempre, il mio sexy maschile, molto amore.
They use this phrase because they do not want to say, "I Love you" but they do not want to look too uninterested by just saying , "Thank you" or "Sincerely"
So they go with something just in between that'll still give them power over the guy without losing the chase.
A sly verbal tactic for females to essentially whip the males with hope and a false sense of security and attention.
Joe: Shut the fuck up bitch. You were probably born missing a few chromosomes.