I rarely texted with my therapists but emailed a lot with both. Mostly I wrote and sometimes they responded other times (more often) not. No charge for any of it.

The way you describe it in the last post, Creamsicle, smells a bit like manipulation and a business agenda to me... I might be wrong but what I thought. Sounds to me like your MC wants to control the whole thing. Could you have a structure where you initiate the texts whenever you want and she responds when she can. It might be that you would need to wait longer for some responses but, IMO at least, the client should be able to control the course of therapy. It is kinda weird that the professional initiates it. Again, take what I said with a grain of salt, just my reaction to the post.