Aspergers question at 20 years old?

Ok, I'm 20 years old, and today my girlfriend told me I might have aspergers. She wasn't being mean, she just said I remind her of her brother, who has aspergers. I researched it, and honestly, it seems like to me it's more of an attitude problem than an actual disease. I have most of the symptoms, I don't pick up on social cues (but I honestly say I don't care about being social cues, so I justify it that way) I really don't show empathy for people because I have never been in a bad situation really, so I don't know how to show it, I have very few interest, and don't use many facial expressions, and I have poor hand writing. I think for me it's an attitude thing because I live in a crappy town, go to a crappy community college, and I hate my job and the customers I have to deal with. Being in those situations for the past 2 years have really made me a bitter person all around, and I sorta hate being social with people/meeting new friends. I sorta like where I am now. The reason I ask if I might have it is because my parents said I never showed empathy for anything really when I was younger and I had an extremely hard time getting along with people. Does it sound like aspergers, or does it sound more like a situational attitude problem?