Friendship & Relationships are interlinked. For instance, if two people(a boy & a girl) are friends & gradually their friendship turns into a relationship(means they get married)it brings a great change. The base of their relationship is definitely going to be strong because they started with friendship. They know each other to a great extent because they were friends before. Friendship is a big bonding & many people last friendship till the end.
These days girls & boys turn their friendship to a relationship & yes it works. Trust, sincerity, understanding of nature, love, etc. is seen in a relationship that was friendship in the early days. If things get wrong in a relationship, it is the friendship that protects that relationship. There are fewer fights & arguments when there is friendship in a relationship because understanding exists in both the partners. A beautiful quote dedicated to all friends——“Relationships are always strongest when you are best friends first & a couple second. Thus, friendship is great power in a relationship & one should have it in life.

Also Read:Why friendship is different than any other relationship we have?