<human>: Can you provide a brief overview of the text?

So and my girlfriend were talking and she is going off to college in about a month. I recently moved away from living next to her and now she thinks my age is getting in the way of us doing things. The first time we tried to hang out she came to pick me up and my mom didn't want me going out her so i told my mom it was my friend. So she comes to pick me up and my mom almost notices it her. (she didn't) and my gf said she felt like an older guy and didn't like that I couldn't drive nor pick her up. You know do all the things older guys could do for her. Now here's where things seem fucked up. Supposedly she is my cousin. Now let me explain when we started dating we didn't know but when we did her parents and my parents told us many different things about how we are related but nobody had the same story so we thought they were lying to keep us form dating. So we just kept our relationship on the down low. But now she is getting upset that we cant do all the things 'regular' couples do in front of our family or her friends. So she just doesnt want anything to do with me anymore and just be 'cousins'.
<bot>: Girlfriend doesnt like being the older one of the relationship plus she thinks we might be cousins so we cant do things in front of family nor friends. (reading it might make more sense)