Why this girl wanted to delete my number?

I was talking this this girl for a while since fed I think and she got out a 6 year relationship with her ex but I been talking to her since then been there when she had bad times and good times I wasn’t expecting to get with her until we talk everyday and I knew she had feelings for me and she felt the same but just recently she sold her house and that’s when her ex came to her face and this new dude she been talking to before me but I could tell there conversations was off and on but since then she ask me to be friends and I agreed to it but when I first met her she was testing me the whole time and playing mind games so last Wednesday she text me I’m going to delete your number and I said ok so why she wanted to do that and I didn’t do nothing wrong
Why this girl wanted to delete my number?
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