sex and relationships

So I suffer from a low libido due to my pcos I've recently lost a bunch of weight which has minimised all my symptoms and increased my libido. My partner and I have always argued about sex as I would hardly ever initiate it but now I'm the only one who does. How can I get him to start initiating again?? Every time we talk about it we end up in an arguement 😔 please help I need some advice 😖