Boyfriend refuses to perform oral sex

It's been over a year, and he still flat out refuses to give me oral. We have talked about it on several occasions, and he always says he tried it once a very long time ago with his first and hated it. He swore to never do it again.

Now I'm going crazy, to the point that it is all I can think about. I've been kind and patient, but now I'm starting to feel resentful and insecure. He isn't even willing to try, which makes me feel worse. And now I'm sure if he did try, I'd be so turned off because of his reluctance that it would ruin the experience. I am hygienic, I take very good care of myself. Foreplay isn't that important, right?