People always tell me that I try too hard to be a good boyfriend. It doesn't mean you have to be harsh, but you have to stand up and be you, and if there are conflicts, then you can stand up and represent your side. Bisexuality, the ability to enjoy sexual intimacy with males and females, is dependent on what your partner thinks of it. Some people might see it as separate and not threatening to them while others want to be completely monogamous. If you want someone to be true to you, then they need to be true to you across the board.
Sex tends to breed deeper sexual relationships and many conflicts.
Without knowing the two of you, it is hard to guess what is disgusting to you. I have worked with many people who didn't like each other but were able to mend their relationship. I have been married 15 years and am still waiting for my wife to give me oral sex. If, after 15 years, she hasn't given you oral sex, then I think the future looks dim for that. We want love because we are mammals and mammals need love to survive.