Hey
So.. sry i had no time to answer you in the morning because my family was really busy (cause we went to the zoo)
Well as i read your message i was just like "wtf". I mean just because you are a lot with a girl they don't like so much they don't have to hate you....
And i wanted to tell you that i am also often with a girl who is not that much popular in class (but her classmates talk to her and they have a good realation). But she is so cute and i am really really thankful that i have her!!! And on the first days a girl who is not liked by a lot of classmates helped and talked to me too. She is really friendly too me.
Maybe your classmates will stopp doing that when they get to know you better (after some time). Because i mean you didn't do anything bad to them. Don't worry i think it will get better with the time!