My crush rejected me but her best friend won't stop texting me?

My crush, a girl I spoke to or messaged daily, told me she had small level of feelings for me but couldn't picture a long term future because of an age gap. She said she wouldn't act on feelings because she only wants long term prospect and the gap is 10 years.

Her best friend another girl who is going out with her brother so is definetly not romantically interested in me keeps messaging me very frequently. I just want to know why is she doing that we are not that close so to be receiving so many messages is very unusual. Any suggestion as to why?

My crush rejected me but her best friend won't stop texting me?
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