For me, yes it has been helpful to text t1 something like "checking in". We have an image of me on one path and him on another. Our paths cross twice a week in session. The rest of the time, even though he is out of sight, he can still hear me if I shout. Texting is me shouting, just to be sure that he is there. The image is helpful to me-obviously we can't do therapy shouting back and forth, but it can help me to know that he is there, and that our paths will cross again.

I actually think for me it is better to just say that I need to know he is there, otherwise I spend energy on trying to figure out what to say so that I get what I need and I can get all caught up in what I have put out there. And, it has the advantage of him not having to have time to read a bunch or text a bunch- he can shoot me a quick text when he has just a minute or two between other clients or after hours.