I think my husband watches porn

We've been together for 7 years and I looked in his phone web history and there's different porn sites in it. I have never in my mind thought he watched it. I am not sure on my stance on porn but I am sure that I am not ok with him not telling me. Our chemistry has gone down hill and i have felt his interest going away. I'm going to have to talk with him but I feel hurt. Anyone have any similar experiences? Please help me.