you cant break an egg in your palm long ways because you cant supply enough pressure to break it the egg is stronger from top to bottom then it is side to side
there are many ways you can break an egg all you have to do is put a fair enough of force on the eggshell and it will eventually crack if not its a baaaad chicken
I guess there isn't much of a difference. A break-up is a full-on split, and a break is a chance to be apart, for your partner to see wether he likes being apart from you, or wether they should carry...