How sad that you find yourself in this situation.
It sounds to me that you know what you *should* be doing (the 180), but like so most left behind spouses you are finding it hard to consistently follow through with your plan.
It sounds like there is no point in initiating any talk about your past relationship, or trying to figure out why your H has reached his decision to leave the marriage. As frustrating as it is, he isn't prepared to give you answers right now, AND even if he did try to explain why he is unhappy you must realize that he is currently in the process of rewriting your life together to focus on the bad parts -- by seeing the bad and not the good, it is easier for him to leave the relationship.
So for the practical matters --
(1) Decide if you are willing to have him move back into the house. Is there a spare room he can stay in? If not, then consider telling him that since he has decided to move out he needs to find his own place. Obviously, if you two own your home together than you will need to decide if you can afford to stay in it or whether you will need to sell it. Also, if you take this path you will need to separate your finances so that this is possible. Educating yourself on divorce and custody law will be important.
(2) Come up with a basic co-parenting plan. Write it out. If you like, you can write a document in google docs and then share it with your H, so he can make comments on it. What kind of custody arrangement do you want? does your H want? Will it be a 50-50 split, or will you be the primary parent and have your H look after your child every other weekend and on Wednesday evenings? Once you've decided on the split, then suggest to your H that you start implementing it immediately. Tell your H, "since junior will be living with me on M, T, Th and F I will be in charge of picking him up from school, getting his dinner and putting him to bed." You can decide if you are willing to have your H in the shared parts of the house during those days or whether you need him to stick to his room (or stay out altogether). Then you can say, "you will have junior on W, and the weekend. I will either leave the house on those days or stay in my room." After you've gotten the details for the next few weeks sorted out, mark the days on the calendar and share the plan with your child.
(3) Consider if you and your H can work out the details of your separation by email rather than in one-on-one conversations. Or, alternatively, set a time for you to talk and stick to having conversations only during that time.
(4) Line up individual counseling for you and consider family therapy for your child.
It sounds to me that you know what you *should* be doing (the 180), but like so most left behind spouses you are finding it hard to consistently follow through with your plan.
It sounds like there is no point in initiating any talk about your past relationship, or trying to figure out why your H has reached his decision to leave the marriage. As frustrating as it is, he isn't prepared to give you answers right now, AND even if he did try to explain why he is unhappy you must realize that he is currently in the process of rewriting your life together to focus on the bad parts -- by seeing the bad and not the good, it is easier for him to leave the relationship.
So for the practical matters --
(1) Decide if you are willing to have him move back into the house. Is there a spare room he can stay in? If not, then consider telling him that since he has decided to move out he needs to find his own place. Obviously, if you two own your home together than you will need to decide if you can afford to stay in it or whether you will need to sell it. Also, if you take this path you will need to separate your finances so that this is possible. Educating yourself on divorce and custody law will be important.
(2) Come up with a basic co-parenting plan. Write it out. If you like, you can write a document in google docs and then share it with your H, so he can make comments on it. What kind of custody arrangement do you want? does your H want? Will it be a 50-50 split, or will you be the primary parent and have your H look after your child every other weekend and on Wednesday evenings? Once you've decided on the split, then suggest to your H that you start implementing it immediately. Tell your H, "since junior will be living with me on M, T, Th and F I will be in charge of picking him up from school, getting his dinner and putting him to bed." You can decide if you are willing to have your H in the shared parts of the house during those days or whether you need him to stick to his room (or stay out altogether). Then you can say, "you will have junior on W, and the weekend. I will either leave the house on those days or stay in my room." After you've gotten the details for the next few weeks sorted out, mark the days on the calendar and share the plan with your child.
(3) Consider if you and your H can work out the details of your separation by email rather than in one-on-one conversations. Or, alternatively, set a time for you to talk and stick to having conversations only during that time.
(4) Line up individual counseling for you and consider family therapy for your child.