She disappeared

I made her online, we vibed, becamed close that no a single day would pass without us talking , sharing ideas and mirroring how our future together would be great . We planned for a meet up, but on my end I was held so we had to procrastinate. Things continued as normal, a few days later I tried to text or calling her but they weren't going through. I became patient and I tried to repeat the trend daily but results were the same till now. What hurts and worries me more is her disappearance from me without giving me a reason and where is she?. Though I'm still hopeful that one day she come back.