How you are dealing with SO dependancy on social media?

I feel I have a problem and do mot know how to deal with it! My husband spends all time in his iphone: facebook, instagram, whatsapp... He is using his phone all the time - first thing in the morning, during dinner, before sleep in the bed, even when he talks to me - seriosly, all the time! He posts almost every day and also checking every minute who is liking him! I asked him why it is important to him, that it makes me angry and sad and feel lonely, but he is telling it is also for his work (he owns digital start up), and he is listening to me while checking his phone. What should I do? I'm tired of it!