Should I be worried?

Ariella

So my fiancé and I haven’t had much of a sex life or any romance really for a couple months now. It’s sex when he wants not when I do. When I do, he has excuses. Anyways. When I was on his phone earlier I felt compelled to look at his media pages which I know might be bad but I did. On his Snapchat he’s subscribed to 3+ sexual/porn pages. Should I be worried? Like maybe he gets enough satisfaction elsewhere like these pages and that’s what’s causing a turn on “US”?

Opinions? Advice?