I don’t know anymore

What do you do when your husband stops treating you like he loves you? No more I love yous, no more kissing, sex maybe twice a month, no hugging, no compliments, nothing. He used to bring me flowers occasionally for no reason, he hasn’t in over a year. He doesn’t respond to my text messages. He used to be so good to me. I want to feel wanted again. We’ve only been married 2 years but it feels more like 20.