Prayer Requests - Pray for our marriage

Please pray for me and my wife.
She has separated from me with the intention to seek divorce.
We have been married 34 years with no children.
She has not worked for the past 25 years due to illness.
I’ve worked to pay for all expenses including her medical costs the entire time.
The entire time she expressed her gratitude for not abandoning her.
I feel betrayed by her lack of loyalty to me, but I forgive her and want to reestablish our marriage if it is God’s will.
I do not understand the root cause of the problem. My priest believes she potentially suffers from some form of autism based on his pastoral experience, but says a professional psychologist needs to make a determination. However, based on reflection, I believe this might be a root cause of her behavior.
Please pray for us. Thank you.