After dance lesson asked a girl for her number as we were waiting for transport.

Messaged her some vague "Happy easter" neutral message next day so she has my phone.

Didn't message her for a week (did not have time).

Messaged her after a week "Hey, you weren't at dance lesson today. Pity"

She replies "Lots of work blah blah blah, how was it, what did I miss?"

I reply: "Well, lots of sensual cool moves, we could rehearse during weekend. What do you do on Saturday, Sunday?"

She replies: "Cool, will join next week. I work during weekends, but evenings are free."

I reply: "I usually hang around X place to relax there. Let's go on a pool there Saturday evening!"

She replies: "I accept your invitation :)"

I reply: "Ok, let's meet at X place at Y. I will lead you to the place (swimming pool) from there on"

She replies: "I don't know at which time exactly I will be free, so we can't talk anything concrete, but I will let you know on Saturday."

I reply: "Ok".

Well, Saturday comes and she naturally ghosts me like all other girls.

What mistakes did I do apart from not having face of 1% Chad tier only the body?

Note: this girl is free (because she goes to dance lessons and has no indications of having bf)

I'm 6'2'' and very fit (pic confirmed it in previous trhreads)