1 Corinthians 7:1-2 says, 'It is good for a man not to touch a woman. Nevertheless, because of sexual immorality, let each man have his own wife, and let each woman have her own husband.' The choice is between not touching or getting married. If a boy and girl are not prepared to get married, they should not be touching at all. It is not that touching another person is sinful. The problem is that it frequently leads to sin. The commitment not to touch puts up a barrier against sin. If a boy and girl never touch, there is no possiblity they will commit immorality.
It is fine for a teenage boy to be friends with a teenage girl. But to be boyfriend/girlfriend implies that there is a deeper level of involvement. Emotional connection with a person of the opposite sex is often the prelude to touching and then immorality. Most young people have a deep desire to feel loved and cared for, but they are often naive about relationships and end up playing with fire (even when that is not their intention).
We suggest that you talk this matter over with your parents and your pastoral leaders and follow their counsel.