It is highly likely that he will respond "Because a friend is someone you can talk to about things that are bothering you and they will stick with you no matter what."
Explanation:
Friendship is a beautiful relationship between people. A friend is a person to whom an individual have mutual affection. One can share his opinion, inner feelings, common interest, sadness and fun only with his friend who stands for him/her throughout the time in-spite of all matter.
Generally friendship is segregated based on gender in almost all societies. This led to lack of cross-gender interaction.
A person can share or freely discuss with their friends regarding the things that bother them.