Too overbearing???

so i think i need my best friend more than she needs me...its hard cause im constantly missing her ever since she moved away. i know she misses me too but it just doesn't feel the same. we used to text 24/7 but now she has this new friend so not so much anymore. i hate thst we never talk anymore but i just can't say anything. should i just let her move on. its not like i haven't said anything to her about the way i feel so maybe its her way of telling me to move on...is it? am i being too needy? what would you do if you realized you were loosing your best friend and they didn't seem too worried?