Man Vs Boys

There are man, and then there are boys... i just realize recently that different guys have different ways of showing how they like a girl... according to a source of mine.. there are those who will put down everyone around them when they are in front of the girl and there's the bully the girl kind.. but isn't that a bit childish? does this make them boys? or do man do the same? I'm not great with relationship and I've never experience this kind of 'bullying flirt'. but how do men go after women? how to boys go after girls? does it matter how they go after someone or the way they show their liking? i can't help but to think if there's a relation in all this. and if so... do i deserve a man or a boy? can boy become man in a relationship or must we allow them time to grow into man before dating them?