I've started wondering recently whether or not maybe B is waiting for ME to set the pace of communication. Right after the bomb I told him, "I'll call you when I"m ready to talk," and then, I never did. So... I wonder if he still thinks that the ball is in my court for setting the pace? Thoughts?
I think that yes, you need to take more control of the communication and set the pace yourself. Show him you're interested and don't be worried if he doesn't reply quickly, or in the same way you you'd like him to (not that I think he wouldn't, just have low expectations). I think you need to show him you're interested and open to a closer relationship with him but it's going to take time to do it and to infiltrate all aspects of his mind..... no expecting immediate results of being disappointed if he doesn't respond.
People love people who are interested in them- he might be suspicious at first but just keep going and see if it starts to pay off over the longer term. I don't think you'll lose anything, but there's much to gain. I also don't think there's anything to be worried about in terms of pursuing. You've given him the gift of missing you, and now need to give him the gift of lovely, super-hot and smart thoughtful you!!
Send him a text today- don't worry about it being perfect, just reach out and say hello and be yourself. It's the overall pattern than counts rather than each individual interaction.