Does this girl like me?

There is this girl at my school and none of her friends will talk to me they all say no she doesnt but her best friends cuzin said yes when we were friends and nvr talked to me after a couple days later and im not friends with that person or the person whos cuzin she is. She smiles says hi wont talk to me and also looks at me in math cl. If not i need a girl and im 13 in 7th grade ppl hate me sumtimes like half the school cuz im annoying and i make perverted jokes cuz my friends can and ppl think its funny but when i do it they tell on me? her friends and she wont talk to me much she is oooo cute