I don't read as you've done anything to provoke' anxiety' .

I'd probably, myself, write once more. Something along the lines of, 'Is everything OK?'(like this expression, used on me, and I find it non aggressive/ possessive and leaves the door open that there really could be something very, seriously wrong..)

See, if he responds. Then, time to get him to meet you, or get walking.

Three days, without any notice, would irritate the **** out of me. That's just me. I don't like babying the men in my life. Have sensitivity for me, I'll have sensitivity, for you. It's a two way street.