I am so very sorry you're going through this. I'm glad you've found this forum so that you can connect with all of us who have experienced the same gut-wrenching pain of a spouse in MLC. Please know that you are safe and cared for here.
To answer your question, YES IT DOES GET BETTER. I wish I could tell you that it happens quickly, but it takes time. 26 years of marriage and memories don't simply fade into the distance in a matter of weeks or even months. And no matter how "real" his words may seem or how much he believes them to be true, please remember that he is in crisis. Of course he loved you...you don't stay married that long if there was no love. I know his absence and no contact is painful, but he is doing you a favor because it allows you the DISTANCE YOU NEED to heal. And this is the journey we all have been thrown into...a journey of healing for ourselves. Please be kind to yourself and allow yourself to grieve. Cry when you feel overwhelmed. Take time off work, if possible, to give yourself the solitude you need to feel your emotions...they need to flow naturally. This is a process, and you must go through each stage to graduate to the next...but YOU WILL make it through.
Speaking to your attorney is the wisest thing you can do because you need to protect yourself financially. I'm currently finalizing a "separation agreement" because I have to wait until the end of the year to officially file for divorce (1 year mandatory waiting period for me). If you take that first step, then you can decide later what your 2nd step will be. You don't have to figure it all out now. You have to make sure that you are emotionally stable and solid before you proceed with each and every step, because the road will be bumpy no matter which way you choose.
I am 7 months from BD and 5 months into separation. I went dark immediately after I found out about OW a couple of months after H moved out. Fidelity is a non-negotiable for me so even as painful as it was, I had to decide to move on without him. Going dark has helped me tremendously to detach and heal. For a while, I was suffering symptoms similar to PTSD and my physical health was in jeopardy from all of the emotional stress, panic and anxiety. H was the love of my life (and he told me the same two days before he moved out), and I didn't think I could survive. However, here I am now feeling more alive and free than I have felt in a long time. I am excited about life again and building a new chapter for me and my kids. The tears have stopped flowing. Now when I think about him, I still feel the loss but it's more like a feeling of "what a shame it didn't work out". The love of what we used to have will always be there, but it no longer hurts to think of our past. Instead, I feel a sense of gratitude to have been blessed with a wonderful and loving husband, incredible father to my kids, and fantastic life partner for the last 17 years.
Here is the approach that worked for me: in my mind and heart, my wonderful husband died the day of BD. When I realized later that he's going through MLC, I decided that I must do everything to protect my precious memories from the monster he had become. So I separated the man I loved from the man he is today...they are NOT one in the same. This allowed me to hold on to what I know we had (an incredibly bonded, once-in-a-lifetime, loving relationship) and not drive myself crazy questioning the past 17 years. It enables me to help my children hold on to the love they feel for their father, to honor it and to cherish it. It helps us all separate the sins from the sinner - to separate the sinner from the saint we all loved. It took hours of therapy, prayer, scripture reading, talking to family and friends, and self-exploration to get to this point, but here I am - finally.
I wish you nothing but healing and love. You will find peace again. I promise. Just hold on to yourself, dig deep to find your inner strength, and know that you are beautiful inside and out. Hang on tight to your family and friends - lean on anyone willing to support. Go out into nature, take long walks, do things FOR YOU that bring you joy...things that don't have anything to do with him. Most of all, love yourself. Take care of yourself. Be kind to yourself. IT DOES GET BETTER. I promise.