If it's not your thing, then it's not your thing. Make sure your partner knows this ahead of time though. They are going to want to try (I know I'd want to), but it really has to be only at your request and if you really feel like you want to try it again.
Speaking as a woman who loves to give head, if I was with a man who didn't like it, I think that's how I'd prefer it be handled. Somehow I'd think, I could make him like it - even if I couldn't. So if there were ever times that he thought, yeah now I'd like to try it - that would be the time I'd be on him. I wouldn't want him to let me do it, just to make me feel better - that's just a recipe for sexual resentment.