Husband of 17 year out the door in a hurry

[PrincessP]

This is my first time on the DB site. Feeling scared and all the other range of emotions. My apologies at the outset for not having all of the abbreviations down pat. Here goes…
My H walked out the night before my birthday early in January of this year. He said that I have been “mean to him for 20 years” and we have sexless marriage. We have been together for 19 years since meeting mid sophomore year of college, and have been married for the last 9. For 12 years we have weathered the hardships of his education and training to become a physician. In that time, I supported us financially, emotionally, and managed every aspect of our lives to keep everything moving. We hardly fought except about the severe lack intimacy now and then, until our child was born and things got very bad. I suffered from severe post-partum after suffering a horrible delivery and being overwhelmed as a mom and keeping all of the above home management and a full-time career still going. The sexless relationship started a few years after we first got together. Looking back I feel I lost interest because I felt that I was on the back burner to his career goals. As an only child I craved attention even though I kept telling myself and others I could handle the life of a lonely doctor’s W. When the post-partum set in I have to admit that I did get VERY frustrated; I felt I was still doing everything on my own and now added single mom to the list. After some great individual therapy I got my relationship with our child back on track; it was really awful for the first year and half. In that time of mending, my H started his first job (post training) and had an A with a nurse. Sounds so cliché. After finding out about it nine months later, we went to couples therapy with someone who did not suit us. My biggest regret is not finding a better suited therapist after five months of wasted time, money, and effort.
Last week my H went to see my individual therapist to tell her (instead of me directly) that there is no possibility for reconciliation and he cannot understand why I am surprised about this. He repeated that he has been unhappy for a very long time, cannot take the sexless marriage, and I am “mean and nasty.” He comes over to the house (yes, we bought an extravagant house in the last six months and even talked of having another child) to see our child. He is cordial, and even gives me a hug and a peck on the top of my head. I know he loves me still and this is hard for him. I have evidence there is someone else in his life already, not sure how long it has been going on or if it is someone new or the previous person. He lives somewhere close by but I do not know. He has shrouded himself in mystery; I guess he is enjoying the control which he felt he never had in our relationship.
I do not want to give up on our marriage, it is simply not in my DNA. I read Divorce Remedy in the last few days. While the concepts are pragmatic, it seems they are well out of my reach to execute. My therapist is trying to convince to move on with my own life because my H will never come back; he is committed to his decision according to my therapist. In the last few days I put an end to my pity party; I am wearing make-up again and even doing my hair in new ways. Small differences that everyone is noticing even my H. Time is working against me, we cannot hold onto the house for too much longer. In order to keep working full time and have child care I either need to move 100 miles away to my parents or 20 miles into the big city nearby (where I work). I do not want to ever send the message that I am giving up or I am done but practicality is what I am faced with. I have no idea what to do next. I keep telling myself that my first goal is to have H home in three months. How do you reach out to someone who does not want to be with you?