One does not fall "in" or "out" of love. One grows in love.
To that there is an answer.
What love we've given, we'll have forever.
Change. It has the power to uplift, to heal, to stimulate, surprise, open new doors, bring fresh experience and create excitement in life. Certainly it is worth the risk.
Life is our greatest possession and love its greatest affirmation.
Like any other living, growing thing, love requires effort to keep it healthy.