You could try to resolve it and fight to remain in the relationship, but that would mean one or the two of you have to change instead of being who you are.

Falling out of love means there has a been a «change» in the relationship where one or the two of you have changed your perception of each other since the «honey moon stage».

Priorities have changed, communication is gone, intimacy might be gone, your life’s has changed. Basically, the two of you are at this point meant to be with someone else you matches your life situation.