I am a couple of years into seeing him regularly, usually at least one time per month. Communication has been a breeze, and I’ve had no problems with him not being on time for our meetings.
I’d send a final message saying you feel like you’ve been ghosted and asking why. Reaffirm your willingness to meet. Then tell him if he’s ever interested in meeting to reach out back to you, but I would expect an explanation of why you were ghosted.
He travels a lot, but I know he intends to stay close to Houston for the next month or two.