World is upside down right now

[othstr]

I haven't posted in a few days, but I have been reading other posts. I have a few questions that I would really like some input on, hopefully from multiple people.

My H admitted that he is getting an apartment with OW, but he claims she is just a friend who also needed to get an apartment, so they are going to be roommates. I totally don't believe it and told him that, he kept saying it is a 2 bedroom and they are just friends. I was given information that makes it seem like this A has been going on for quite some time, quite a few months if not a year. He still won't admit to it.

So, I am NC right now. He messaged me once about stupid stuff, I responded without detail. As of right now, we don't have kids and don't have much to communicate on, is the NC doing more harm than good since he is able to spend more time with her? I am going to continue NC, as well as GAL, but I'm just curious.

We are on good terms right now. We talked about him coming to my 20 week ultrasound appointment for the full anatomy scan/ultrasound. Does that sound like a reasonable thing to do? I don't want to keep him away from the baby if he is willing to be there for it.

I am working on 180 for myself, but I'm not sure how to do it in the relationship. If he lived and home and I saw him, I understand how I could, but since he is not here, and we're minimally talking, do I just do thing for myself right now and not worry about how to do this in regards to the relationship?

What about detaching? I know I am NC, is there anything else I need to do besides GAL and 180 for myself?

He has only been gone for 2 weeks, so everything is so new for me, I am reading and learning, but not sure how to move forward with the steps.

Thanks for your help!