Hello Beverly,
It is really good that you found this site and spoke out asking for help. Welcome. I have only been a member here for about a month. While the membership consists of far more trans people than allies, I have found the site to be well moderated and the most of the people to be very compassionate.
I am married to a male-to-female transsexual who is near the end of her transition which began two years ago. We have been married for 21 years (together for 24), so not as long as you (!), but at least a good while. We have one child together and she helped raise 3 children from my first marriage (since the ages of 2,5 and 6). You will notice that I exclusively use female pronouns and avoid the term husband. This was not always easy for me to do, but with time, I have adjusted.
If your mate has already has SRS, then there is little doubt that she is a transsexual. That level of commitment is simply not something that one does out of sexual fetishism. She did that because her sense of self demanded it. What is more likely is that you are going through the classic stages of grief. Grief is a natural thing for us spouses to experience; after all, we are losing the image of someone we have long loved. The good news is that we do not lose them to death; we keep them with us in a new form. If you choose to stay with the person in their new form, it is possible to find acceptance and keep love alive. It takes some degree of work on your part. I find it useful to embrace the sentence "This is my transition too."
One of the stages of grief, as you may already know, along with anger and sadness is denial. The fact that you have many children and 44 years of marriage together does not preclude the fact that your partner is transsexual. There are lots of other marriages that have gone through the same thing. For you to be convinced that your mate is not transsexual may mean that you have not read enough to have learned what it means to be transsexual. I resisted reading for many years; when I finally began to read, it opened my eyes and my heart. If you have read, you may simply be experiencing the denial stage of grief. You are not alone.
I would like to encourage you to join another support forum if you have not already done so. It is a forum created exclusively for spouses. There is a real sense of being held there by people who have successfully remained in relationship with their transsexual partners for many years. Some have even had marriages as long as yours. There are also lots of newbies, people who are leaving their marriages, and people who are just trying to figure out what to do. It is called
transfamily.org/spouse and is run by the Cleveland Transgender Alliance (or something like that). You have to write a little paragraph about yourself and then you will be admitted to the group.
Another thing that I found very helpful in working to keep my marriage happy was therapy. Working with a gender specialist, just like your spouse is doing, allowed me to process the grief I was feeling. My therapist helped me to examine what I wanted and who I was now that I was married to a transsexual.
Many blessings on you Beverly. This path has unforeseen benefits and gifts. Please feel free to ask for more help on this site if you wish.
Kindly,
Ruby