"O you who have believed, respond to Allah and to the Messenger when he calls you to that which gives you life. And know that Allah intervenes between a man and his heart and that to Him you will be gathered." ~ Quran 8:24
Yep, a smart man in love will know this and always remember, a single flower for "no reason", a "date brunch" or "date night" unexpectedly... DATE and make time for each other and you will never lose each other. Never lose touch. Never lose the friendship that brought you together.