Probably just tripping

So I only have one best friend, and she has multiple friends. She always posts her friends on social media and never posts pictures of us . I mean I understand we don’t take that many but we still have pictures together. Lately she hasnt been calling me anymore, I have to call her if I wanna talk. And also if I don’t call, I will never hear from her. It’s kinda sad because we have soooo many memories together but the phone works both ways . I also told her that I missed her the last time we talked and boyyyy did she not say it back. 🤣 idk I’ve just been a little lonely . Am I overreacting ? The longest we’ve been without talking is 2-3 weeks until I called her .