Twitter makes me insecure

Okay, long story short. He looks at porn constantly. And it makes me really insecure. Especially when I’m in the mood too and instead of talking to me he just looks at things on Twitter. I haven’t told him how insecure this makes me, because I feel like I’m being ridiculous and stupid. I mean, it’s just porn right? But I can’t keep my mind from going to dark places, and it really hurts a lot and I’m tired of crying about this and feeling like an idiot. Does anyone else have this problem? Does anyone have any advice on how I can get over this?