We know that any relation depends on age, hobbies, common interest likes & dislikes. Environment condition of societies. Pen friendship between two countries. We know that any relation depend on the vibrations transmitted by each one. It cannot be merely vibrations but initial conversation exchanged between the two persons. After that initial conversation if likes & dislikes , hobbies etc. are of higher side and they start understanding each other. It can be between two persons of same gender, or opposite. Yes, it can turn out to be a lasting and durable. We know that friendship is best relation among other relations. There is great scope between this relation (Boys & Girls). If both the persons stick to their limitation and most important is the loyalty between the two.