Sorry you're here.... again. Ouch.
I am here because I struggle with the busines of detaching. Some are better at this than others. I suspect due to family history and past experiences.
Something to do with not having any control of the situation seems to be a big piece to it, at least for me.
Since I'm not so good at that myself, I don't know what I can offer you. But certainly there's a lot of helpful comments coming from some very supportive & generous people here.
As you know, it's about getting a life, having a positive mental attitude. I try to keep in mind that there is a reason for it, I just don't know it yet. I like to imagine my spirit guides are there for me and they are somehow helping me on my path and I should trust that. Everything is as it should be, we just can't understand why from our place of hurting.
I doubt his new r will last long. But regardless, you should be taking care of yourself and moving your life forward.
HUGS