My best friend is my mate

In Cresent Moon pack, it is very rare for a pair of mates to know each other beforehand. No matter how much they don't have in common, how many fights or disagreements they get into, their wolves and their love will eventually prevail. But what happens when fate brings to best friends, destined to be together as mates? What will happen when there are other people romantically involved? Is love strong enough to prevail this time?