Is this normal or immature?

I really like one of my friends, and we've been friends for years. She recently had her ex cheat on her during lockdown, and she was kicked out.
She vented to me a lot but then she started to barely talk to me. She said we could hangout, but never got back to me.

She would say she's busy, or doesn't have time to respond usually, but consistently posts on social media. At this point I figured she wasn't interested, or I came off the wrong way. I mainly felt taken advantage of, so I deleted her number, and muted her on Facebook and Twitter and unfollowers her on instagram and we haven't spoken in months and I'm perfectly fine with it

Is what I'm doing normal, or is it kinda immature?
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Is this normal or immature?
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