I dunno how a girls exam performance correlates to how good they are to be in a relationship with. Heck, the girls I've enjoyed time the most with have been ones who were in the lower sets at school as they knew how to have fun and didn't take things like that to an extreme degree of seriousness
Look - You do you. If you want to dump your girlfriend, do it. If you don't, don't. Also: Look at previous posts on this exact same issue. You'll get the same advice.
She failed all her exams and I was wondering what I should do?
Everyone is telling this guy that the girl deserves better and that he is shallow, but i disagree i wouldnt want to be with a dumb girlfriend, and if she failed her exams she might end up not getting a good job so she might become financially reliant on him, so i would break up, as i would want someone on the same level or higher level of intelligence.