I think we do reach a point all of us where you dont' want to think about it, talk about it, or deal with it.
I think it is a way for our brain to protect ourselves, and stop the chaos for a while. I believe it is referred to as the flat plane of R. It is a tricky time, because the tendency is to let things go, and ignore the elephant in the room, but the pitfall of it, is you tend to ignore so long that you don't even see it, that's when it will trample you.
It's OK to need a break from it all. It is ok for you to take a weekend away with some friends, or even by yourself. It's also ok to take a weekend alone, together, and agree that you are just going to enjoy each others company, no A talk.
You need to step back, and get a breath of fresh air, reinvigorated to really jump in and start down the road of healing. Til this point it's been primarily about the pain, and hurt, and just surviving day to day.
Hang in there, take some time for you. It's ok.