I'm petty and I'm taking back the jewelry I got my girlfriend
Why would you take back the jewelry?
Because she's so mean, I can't accept her attitude
Its fine to get upset every now and then if you feel your girlfriend is giving you an attitude. However, do the best you can to not stoop to her level and be petty. This is only making the problem worse.
Nah, I'm petty and I only care about myself. That's how I work.
You shouldn't be proud of being petty, you should just try to be better than others that are mean to you.