Does this get better with time?

well im bi. and i told my parents this in january. and we didnt talk about it since. but i recently told my little sister about it and when i told my mom that my sister new she kinda flipped and started saying she doesnt understand y i wanna tell ppl and how she doesnt understand y i am the way i am and she really just made me feel like i was such a bad person just because i love differently than most ppl...im nt ashamed that i am bi and ive told alot of my friends and most of them accept me the way i am...ive had one problem but hes an *** to everyone and he doesnt bother me much...i was just wonderin does it get easier with time? i mean i dont exspect her to ever completly understand but all i want is acceptance.....