There is NO such thing as True Love. Its only “Infatuation”. Its your mind playing tricks on you. Listen to the advise above and forget that guy. By forgetting him, he is not gonna be dead or be misreable.
I am going to tell you something right now. You should write it on a piece of paper.
Even if all the people on this forum tell you otherwise, you are still going to chase that guy against your parents will. No matter what anyone says
Now, do you want to read something that you really like?
In Muslim religion marriage between siblings are allowed, such as cousins etc.