Rejected by my best female friend. I'm trying to understand her behavior. Why she still interacts with me on social media?

So I've been rejected by my best female friend of 15 years about a month ago. She was recently out of a bad relationship of 4 years. After her break up she started spending more time with me. Texted me everyday invited me out all the time just the 2 of us. We dived deep into conversations like never before. After the rejection I walked away from her. Focused on me my hobbies my studies and my job. Even started meeting new women. For the past 1.5 month she likes my stuff watches my stories. She texted me about 2 times the first 2 weeks to check on me. Thought I'm ignoring her likes and hearts. She's not reactive lately. I think she used me for 4 months after her break up to fill the empty seat. She even said that she understood I liked her but didn't said anything. I think she just wants my attention. And she lost her main validator and attention giver.

I'm ignoring her but I want some opinions on this.

Rejected by my best female friend. I'm trying to understand her behavior. Why she still interacts with me on social media?
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