Feel like I am sinning

I my husband hates gay people. He thinks it's disgusting and he believes a ma and a woman should be together. He doesn't know this but I sort of like woman and fantasize about having sex with woman. I feel like I am sinning because I am married. I could easily become "aroused" by looking at a naked female before I could my own husband, bad right!? I know 😒 I don't want to feel this way. Maybe I should just read the bible....