There is a magic in touching. You can stroke him all over his body. You can do it lovingly, delicately, sensitively, touch him all over, and whisper in his ear and ask him what he would like you to do. Tell him you care about him. Yes, women and men can be addicted to sex.
Some people have chemical imbalances that can be treated.
Your hormones crave all these attachment skills, so in a sense, good sex is always addictive. But if you do it too much and want it all the time then it is an addiction and can be treated. Usually in your 30's you have more of a sex drive, but again I don't know if you are single or married. If you are single, you might not have enough stimulation sexually. If you are married, if you don't have things on your mind, you could have grudges or resentment towards your partner.