I don't know who else to talk to. I'm feeling so stressed

I feel so happy to see my husband everyday when he comes from work. But these days he comes home and picks a fight with me out of nowhere. Sometimes I remain silent so there would be no conflict in the end. I would ask him what I did and he always says nothing. It's been 12 years and and I love him but I'm not sure why he's making me feel this unhappy. Sometimes I just cry alone hoping that he'll say something.