Hi Kyh,
I'm sorry about what you are going through. I'm in a similar situation with my husband. But the friendlier I behave the more surprised he is and it makes him avoid me even more. He shouted at me that at first he's the bad one and now I'm nice to him and he doesn't know what to expect. Since he says he wants our marriage to end and that's it, he is running away every time he's around me. So, I decided I will have no contact except e-mail about kids, very factual. I didn't contact him for a few days. Then he started to e-mail. He is coming to cook for kids today and take them to tennis. I'll make sure I won't be home before he comes. Our kids are teenagers which makes no contact (or rather very limited contact easier). What is your story? For how long this is going on?
You must be a very nice person. My husband ignored Mother's Day. When I mentioned to him that he could at least say happy M's day as we spent the day together driving back home from a long weekend with the kids in our home country, he said he would even buy flowers and took us for dinner if he could be sure I didn't misundertand that as him wanting to be back with me!!!
I personally cannot or don't want to be friends with my husband. Love him too much to be able to be friends. Especially that he sees himself married with 20 years younger girl (he is her boss) in the near future... Being friends would mean that he'll get the best from both worlds. So what would be his motivation to consider coming back?