I think you should ask your husband if he'd do you a big favor. Tell him that you need his support because you are feeling unhappy in your marriage. Ask him if he will attend marriage therapy classes with you. Some men get freaked out by this so make it sound like you need his help and be very gentle about it. He will not go if he feels like he is being accused of something.
You used to be in love. Love is like a flower. Without water and sunlight it fades and sometimes dies. Alot of flowers CAN be brought back to life. It doesnt sound like you hate your husband. You are just missing that spark. See if he agrees and if he'd like to get it back.