Dear Ila
You already have your answer. And it is all in your letter.
What: You are confused
Why: You are married and there is another man that you have feelings for
Within the confusion lies your feelings about your husband, guilt, fear, sadness, anger, etc and no matter what he has done there is that feeling of betraying him etc.
Then there are the feelings for this new man, excitement, new beginning, hopes, desires, dreams, possibilities and the feeling of being alive again.
But in all of this. . .you are absent. . .there is only these two men, one showing you what you dont want in your life and another that has created a spark in you.
You wish for "something" greater. . . that "something" is a greater you.
Look at who you are. What you value in life. What you believe in. What you want. What your dreams are. What makes you sing and laugh. What makes your life joyful. If you dont know what that is. Then it is time for you to go on a journey to discover you.
You can only meet someone halfway and if they are not willing then it is time to make changes. But only you can choose that. Your husband has his own issues that he is projecting onto you to recreate the lifecycle he is accustomed to and for you to learn from it. When you learn about self, you will be able to look at both your greater and lesser qualities with the feeling of admiration for each new aspect of yourself that you come to know.
Always remember that confusion is merely an aspect of self struggling to become known.
Also take into consideration that at the moment, there is a major shift happening in the energies around us and many peoples are going through confusing times. The energy is amplifying confusion for people to grow through and evolve from. So spend time with friends and family that increase joy in your life to balance these outer energies coming in. If you are able to have alone time, use it to feel your hearts sadness, anger, grief of times gone by. To release and not to wallow. Also use your alone time to write down all the things that you want to do. . .and do them.
All you have to do is say "YES" to yourself.