I was chatting to a woman on a language exchange app. She said she needed to go to bed. I asked if she had whatsapp. She replied "I don't really use it" then gave me her instagram. I said I don't have instagram. She said we can chat in the app we were already chatting in. After she said ciao I replied bye but she logged out without reading it, maybe she saw the message in her top bar. What does this mean? She said she "might" go to my city this summer, that's why I'm chatting to her, not sure I should?