Great posts to Tumbling. Earlier, I said he would call bc he will be curious if you don't reply to his texts. Here is the deal: he's comfortable with texting. You always reply, so it's working for him. If you stop replying, he will get the message that this is not the only way you want to communicate. You don't have to not reply to ALL texts, but to some, at least. If he asks, you can say you were busy and if he needs to reach you, it's better if he calls you.
I know how much you want things to advance. You must continue being patient, but I do agree it might be time to shake things up a bit. I went for a short hike earlier today and thought about you and your sitch. And I actually give you guys a good chance to save your M. Your H just needs to realize you won't be there forever.