I Need Help With Talking To My Ex-BestFriend Agin ?? Plz Help !!?

Ok, so me and my ex-bestfriend haven't talked for like 5-7 months. We were really good friends, we grew up together. Her dad worked around the corner from me wen we were young & we were literally together EVERYDAY and EVERY hour. Then her dad no longer wanted the store so he sold it, me & her lived a little far from each other, so i wud go almost every single week ( Friday, Saturday & Sunday) to sleep over her house. Her older sister & my older sister are best friends, I've always wanted me & her to be like tht. Cuz our sisters also grew up together and their still close till this day. They were like 5 wen they knew eacht other & now their 17 and are still bestii's.... Our sisters wud take us to Coney Island ( The Beach & Amusment Park ), wen our sisters wud go shopping they wud take me and my ex-bestfriend with them, we wud go out to eat together, wen me & my older sister went to her house all 4 of us wud just chill in her room, etc. Then someone told her i said something bad about her ( but thts not the main reason why we stopped talking), then she believed the kid & it turned into a HUGE fight over facebook. Like wen i say fight i mean cursing the shhiitt out of eachother. We were calling each other names and whatever. So we from tht conversation we just stopped talking, i miss her SOOOO much. The first month i would cry every night thinking about all of our memories we had together. I now realize i need her and i have to do something for us to talk like we used to. I messaged her like the 3 or 4th month we weren't talking saying " I wanted to say sorry for everything i said " and whatever, she responded saying " Ok " wen she says " Ok " she doesnt care. Even tho it was both of our faults i still apologized. I did say some very rude & mean things... So i said " Never mind ". Idk wat to do now. I really need her and i miss her sooo much. I feel if i message her on facebook ( its the only way i can talk to her ) she'll be like " I dont care " I hate getting rejected thats why im scared to message her. She sed some really mean stuff too. It wasnt only me. I have bunch of friends & she wud get kinda jealous wen i was with them. I recently have 3 really, really good friends. But none of them are like her. & I think she wants to be friends again too. Becuz wen my sister & her sister were Ovoo-ing my sister told me to come & my ex-bestfriend was on the screen she told me hi.. I just left the room cuz i didnt knoe wat to do ... So someone, plz help me and tell me wat to do she was like my sister, I need tht relationship we once had back. And no one plz tell me " Just say sorry " It isnt tht easy, i need good advice, plzz.