Venting - complicated friendships

So around 6 months ago I posted on here that the girl who had been my best friend for almost 10 years randomly ghosted me.

This went on for probably around 18 months, I got in contact with her every now and then to check she was doing ok and when I saw she had some big events in her life (congratulated engagement and tried to support when her grandparents passed away).

Anyway, I finally just said I wasn’t sure what had changed but I just wanted her to know that if she needed me or wanted to catch up I’d leave it to her as honestly I was finding it upsetting/frustrating not knowing what was going on.

She said she’d just moved on her with life and thought I had done the same (which we both have but, I still considered her my best friend and don’t think we need to talk every week to be that)

I deleted her from my Instagram and Facebook as it was making me upset seeing posts from her all the time. Then around 5/6 months later, she randomly added me on Instagram again, so I accepted to see if she was going to say anything. She liked my posts announcing my pregnancy and then nothing...

I feel like she just wants to be nosey but, doesn’t actually give a shit about our once really great friendship