Why she changed her behavior within 3 days ?

Is this ghosting ?

Hello folks.
I’ve been writing for about 2 weeks with a woman I met on Tinder.
We had a few good convoy and very, conversations emanated from me and her, and had already looked at when we could meet regarding a date.

Sunday was planned, but I made sure that maybe there is a family meeting.
She said it’s absolutely fine, it wouldn’t be a problem, she can always spontaneously free up some time.

Since Friday, however, there has been no message from her, so I left it at hello.
On Sunday I then wrote according to the motto whether she would still be alive. Then she said yes, she only spent the day with the family.

On Monday, i.e. yesterday, I asked you how things are going for the coming week.
She wrote that she has a lot of appointments, meetings that she would look forward to, sport etc. (therefore no longer any of the supposed spontaneity).
I replied that the last few days her behavior was somehow different.
To which she replied that she had a friend to visit and was therefore a bit short with messaging. But maybe it’s not the right time to get to know someone.
Then I wrote what was going on and whether she was serious. So far no feedback.
How do I behave? Wait or delete contact directly?