So glad that things are starting to come together for you! We didn't drop the dreamfeed until around 9 months, I think. The reason that I kept it up was simply because I enjoyed the quiet time. I think you should keep on the schedule w/ the dream feed around 10ish until you are ready to stop it or as its recommended around 6-7 months. That way, you should have a better idea if he is waking just for food or for something else. At this point, I would not worry about doing anything w/ the dream feed right now. Just continue focusing on the night wakings. Besides, he is due for another growth spurt around the 6 month mark and he'll be wanting more bf.
Your husband is very funny. I am glad he is being supportive since you deserve that very much! (((Big Hugs))) to you both! You're doing great!
Lena