I like this girl me and her are both in high school and we talk to each other on the bus. I thought she liked me also that was until I found she had a boy friend. I was so mad when I found out I am not sure what to do? I know I should move on but I really like her should I tell her I like her or will that be a mistake?

She has a boyfriend so she is off limits..

Perhaps you mistook friendly banter with flirting,or perhaps it was mild flirting,I doubt you will gain anything by telling her how you feel,she may feel uncomfortable.

There's no harm in being friends and talking,but remember she is off limits.

Thanks for answering my question.