I am sorry that you are so unhappy. You say that your marriage is broken. I do not wish to pry, but this is not clear. Do you mean that a third party has interferred in your relationship? If that is the case the situtation can be very difficult. Have you talked to your spouse about your problems? Could it be that your partner is having a problem that they do not want or are afraid to share, and that this problem is coming between you? If you have no one to talk to, find professional assistance to help you work through this difficulty.
In the mean time you can enhance the love/romance area of your bedroom with a photo of you & your partner.