Holiday crush is giving mixed signals, need advice

Hello,

When I was on holiday last month I saw a girl on the street and approached her. I took her number and took her out the same evening. We had an amazing date, literally something out of a movie. We ended the date with a kiss, I tried to sleep with her but she said she doesn’t do ONS but she said if she would, she would do with me because she liked me, she was playful about it too. She also mentioned maybe we could meet again without me saying anything about it.

Anyway, I started texting her after the holiday.(We live in different countries). She started replying with huge delays like 24-48 hours.(She works in aviation, she has a demanding job) but she was also online sometimes and still wouldn’t reply but once she replied she would send long messages with emojis kinda flirty and asking me questions back.

On our last message exchange she told me about her next holiday plans and I asked her when she plans it and if she’s gonna be alone. Also I increased the dose of flirting a bit. She never replied ever since and ghosted me for some reason I couldn’t understand because it was going great and she seemed interested. She even was open to the idea of doing something together like travelling. It’s been two weeks, I didn’t double text, I didn’t interact with anything she posted basically I went ghost too.

Past few days she went crazy with her instagram stories and she’s constantly posting stories from that holiday and then usually ending it with a selfie. I am not saying she’s doing it for me lol but it started being kinda sus. She also doesn’t have many followers probably her close circle. Also whenever I post something she posts a story within a few hours.

My message was sitting on delivered for these two weeks, yesterday she opened that too and also changed her whatsapp profile picture to a picture from that holiday.

I like her but I know that I don’t want a long distance relationship, I just want to see her time to time when we get a chance.

I plan to send a casual message this weekend and it’s going to be my final, if she acts the same I will move on.

I wanted to ask you guys what do you make of this behavior? And what kind of message do you think I should send?