How do you move on from someone when they just abruptly left you. Totally unexpected and you didn't see this coming

21M here met a girl on a dating app. She was 25F. We kinda clicked an year ago. We talked for a month during May'24 when I was soo insecure that I had no job and she was about to graduate her BTech. So pushed her away. Then contacted her after I got a job (also because I liked another crooked girl in between the time where I pushed her away and me getting a job. We blocked each other finally).

Though we never got to meet in person, I tried contacting her after I got a job to see if things could work because I really liked the time back then.

We were talking for 2 weeks, but then she pushed me away this time with no last message or anything, she just ghosted.

Later she approached me back on March and she cited how she got into some bad company and bad household (papa cheating on mama and mama cheating on papa) all kinda shook her and she went silent.

I was just happy to have her back and we were talking. Fast forward now, I am about to join office and I asked if we could meet and I can fly to her place now (because I'll have the monetary support with the salary).

Ever since then, she kinda went silent. She was texting less over the past week only, but idk after this one message, she kinda stopped texting.

This happened day before yesterday, and she did not even read any of my messages that I sent yesterday.

That just hurts man. Was I some play toy or some casual fling all this time?

I know we weren't officially in a relationship, but atleast havevthe minimum courtesy to tell if you don't wanna talk. What kind of treatment is this? And this raises self doubts, questions and ignites past traumas, loneliness and everything.

How do I move on?