"I've done XYZ, what are you going to do and when are you planning on doing it?"

Yes, it's time he committed to something instead of hinting he's “leaning” in the direction of the marriage and his family. Were I you, I'd give him credit for the nice things he's done...and let him know you appreciated those things...but let him know this latest inappropriate series of phone calls has wiped it all out...or words to that effect. Speak from the heart.

You don't need it because you're preparing yourself, but I'll say it anyway. Good luck, lady.