The user CP shows your last 5 reps.
If you have 9 points, that does not mean you have been repped 9 times, but rather the 3 reps you have received add up to 9 points.
You have been repped 3 times. The two green have been by people who have added to your reputation, and the grey is from someone who didn't have enough power to make a difference to your points.
Please take a look at the Reputation FAQ, and see if that answers your questions.