I have not read this whole thread, just your first post… but I wanted to give you positive support for this, becasue it’s unlikely others who have not walked in your shoes will ever really understand, and may insist the intimacy and love must be restored in your marriage.
I divorced my husband several years ago, before I was Catholic. Now, years later, I live purely, raising my children, and I do it *with *my ex-husband. We live in the same school district and our children see both of us everyday. We spend free time together. We go on vacation together. Celebrate holidays together. Have some of the same accounts for financial purposes.
And yes, it works. It isn’t the best option. It isn’t ideal. It probably is not God’s plan for the rest of my life. But now, it works, and it brings enormous stability to our children. That is worth everything. It really is! I draw my emotional support from the Lord. I feel that He is my spouse.
Paul tells women it not a sin to leave your spouse and live alone, as long as you do so and do not re-marry. He tells the women to live in peace, and if they cannot live in peace in intimate union with their spouse, to be practical about the matter. There is no sin in this.
Your spouse has a serious sin issue (poronography) I saw very briefly (I didn’t read the whole thread). That sin makes a healthy marriage with him impossible. You are not wrong to withdraw. You are doing what I believe God commands in a situation where the spouse is incapable of performing his role as husband. My ex also has serious issues that make it impossible for him to be a husband. So, I avoid engaging him in ways that he cannot be engaged, and just co-parent, and discuss work, and go camping.
This cannot work if there is anger and animosity and resentment. You must be in a place of total and complete surrender and acceptance of your husband’s inability and failure to be a husband. You must be totally content and at peace with relying on God emotionally and having a totally pure heart.
But, if you can get to that place, at least for a temporary period of time you can give your children a great gift of family stability.
You may have grounds for an annulment, so please don’t think I am suggesting you must live like this forever if it is not God’s will. Your husband may also change, but you can’t count on it, and you can’t expect it. You must focus on your own peace.