It's easy to blame your problems on someone else but relationships are ALWAYS a two-way street.
If your man is emotionally unavailable, consider the fact that your actions or behaviors are contributing to why your relationship is falling apart in the first place. Are you (or perhaps in a relationship) with an emotionally unavailable woman?
Instead of focusing on the symptoms of why you're relationship isn't working (like trying to improve your sex life), focus on your mindset and internal relationship with yourself.
The root of loving and thriving relationships begins within each person because how they see themselves, other people and the world will project out in their relationship.