Hi,
I think my ex is a sex addict so
I've done some research and asked my therapist. My T says it's a way to fill a void or cope with pain.
You may want to sit with your thoughts and feelings...observe them. Only you will know if you have discovered the truth.
Good for you for facing this concern. It's a great sign that you have the ability to introspect and if there is an issue...you will be better able to heal.
Wishing you well...