I ain't a lady and haven't got a postcard but as above there's nothing to read into it. Some check PMs regularly, others may not look at them for days, if at all.
Know any escort, in Ireland(continously) over 4 years, perfect English, has only ever made 2posts here. Once said she had not looked in to this site for over 3weeks.....amuses herself other places on the internet than here;-)
If they have not met you and especially if you haven't much history on here, nearly all will prefer you to call them.
If you look at escort profiles you can see some will have not logged in here for days or weeks, even though touring /working.
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Shalom/salaam.
10,000 years of Middle Eastern civilisation and the place is not at peace but rather in pieces.