Jenarry, the fact that you've posted this suggests you are on the way to dealing with the block.
It won't be different suddenly and is best addressed in little increments - you can see the whole picture, but the people you deal with only see the smaller parts of you that are used in any particular interaction. So trying to be all different, all at once might not only be daunting for you but also a bit bewildering for people who thought they knew all about you.
Sometimes as well you need to not quite talk 'at' each other, but through something or someone that acts as a focus.
This is why people often have brilliant conversations on long car journeys - you aren't staring at each other and you just focus on the passing landscape and the words.
Can you go in and help out around the decorating - dialogue might start then.
Can you get him to read your post? It might be the start of a fresh start.
Good luck and be good to yourself.