Love question

Should you wait for a person that you love to love u back?Should you wait for him no matter how long?Is it worth for you to wait for him?

There's a person who actually love you last time and you do love him,but for a certain reason,both of you didn't become a couple.And now,you know that he has a girlfriend already.But his girlfriend is studying at Australia now because of her good results in SPM and she is also come from a rich family.But the boy is studying in malaysia now.

Sometimes its impossible for a couple to be together because they are too far apart from each other.But sometimes its possible for some couple to be together although they are far apart from each other.In this situation,should you wait for the boy to love you back?Or should you just look further for another guy?I'm wondering...