I Found Porn

So recently my boyfriend hasn't been very sexual and I thought maybe something was wrong... we are happy and he I know he loves me but we haven't had sex in awhile. Its been kind of a dry spell... (he doesn't mind this) I went on his phone a bit earlier because his back ground picture is of me or pictures of us and I had this photo I liked and I was going to put it as his background well when I went to put it on I saw he had downloaded some porn and it was in his gallery... should I be worried...?