I have a great loving relationship that's been going on for 3 years, he's absolutely amazing. He was even my first. Our sex life is pretty basic. Recently, a guy I know (I don't interact with him in any way I just know him and I think he's extremely attractive) has been on my mind 24/7, I even get turned on just by seeing pics he posts on Instagram, I don't even get turned on like that by my boyfriend when he's with me. When I have sex with my boyfriend I imagine it's with him too. What's going on with me :( I feel terrible about this.