Absence makes the heart grow fonder.
Time apart from someone is said to increase affection for them.
What They Mean
Distance edits memory. The flaws fade first; the fondness remains and is gradually promoted.
Are They Right?
Up to a point. Brief absence flatters a relationship. Extended absence flatters the imagination, which is a different department entirely.
What They Left Out
Absence also makes the heart grow accustomed.
They Also Say
Read the ruling: Absence Makes the Heart Grow Fonder vs. Out of Sight, Out of Mind