There is nothing wrong with you and this boy being friends and studing together
你和这个男孩成为朋友共同学习没错
Ending your friendship with this boy would be a stupid thing to do.
结束和他的友谊是愚蠢的
Teenagers like to gossip,and they often see something that isn’t real.
青少年喜欢八卦,他们看到的往往并非事实
My advice is to ignor your clssmates.That way you will show them that you are more grown-up than they are.
我的建议是无视你的那帮同学（的流言蜚语）,那样,你将显得比他们更成熟.