This is a good thing. Learning each others communication skills, then improving on them. Also, it shows that you're trying to put yourself in his shoes in this particular situation, which is HUGE in terms of empathy for your WS.
It helped us during that learning time to not only give the other time to process, but also (and it was really important to me) to commit to a time to discuss it. "can I have some time to think on this? We'll talk about it tomorrow after dinner". That way, you're not left wondering when or if it will be brought back up.
Over time, those periods of needing time to process might get less and less as you begin dealing with less and less A stuff to talk over. It becomes more fluid the more you practice it. Not saying that some things will still need time to process from time to time.