My boyfriend is always looking at other naked girls/porn online. How should I feel about this?

[Kim1992]

My boyfriend and I have been together for nearly three years now and we have a good solid relationship but over the past year or so I have noticed he has been looking at lots of porn sites and google searches for all these different females and it really bothers me. He has no access to a computer so he does it all on his phone and anytime I see him google something his last searches are always porn sites and naked women all the time. Even on Twitter he follows all these girls that like to get their boobs out, take nude photos and stuff. The porn didn't necessarily bother me... Boy will be boys, but the Twitter thing really gets to me for some reason, I don't know why. I suppose I'm embarrassed that other people can see who he is following and I don't want them to see he follows profiles like this. I guess Twitter feels more personnel... It would just be like looking at other naked girls on Facebook? Girls he may know etc which bothers me a lot. I'm not sure what to do, how I should feel (perhaps I'm overreacting over this) or if I should say anything to him?