Hi Anonymous. Thanks for sharing your story and concerns with the EmpowHER community.
First, there is no reason for you to feel "ashamed" that you have a libido, this is perfectly normal and natural.
The real issue seems to be that your husband is no longer interested in having sex with you and there may be trust issues at play as well.
You may find this article, written for the EmpowHER community, will help you put the situation into perspective and give you some ideas of how to go forward: Why Doesn't He Want to Have Sex With Me?
The two of you need to approach this adult problem like adults. That may mean a heart to heart talk, or it may mean seeking professional counseling. You will know what's best for you. Get the help you need, stop blaming yourself and focus on whether the relationship can be repaired or if it's time to end it.
Hope that helps,