Weird situation with a girl...?

[Mark G]

Well here goes. i am 13 and I've liked this girl (who I'll call Julie, for privacy and understanding reasons) a number of times before, but she didn't notice me. but this time it was different. I didn't try my chances with Julie again, but she started to talk more to me and ask me if i want to go with her at a Japanese class(free, every Saturday). Here is the problem. I accepted, believing that there might be something between us. What i forgot was that i will be switching classes next year (same school though) because i am an outcast(rejected/ignored by my colleagues). She is always surrounded by her friends that almost rule the class and I do not really fit in there. I mean I would like to go to Japanese with her but I don't know what to do after that, the class is every Saturday and it's kinda hard for me coz i live far away and I don't think i should fancy her anymore.Julie is probably the most popular girl among guys, but she doesn't pay attention to them. I'va never had a girlfriend before and I'm kinda shy and I'm afraid to disappoint her and it all stresses me up (many other things have happened lately in my hellish life) What do i do?