My nan gave me some love advice a few days ago, and I keep replaying it but essentially she thinks worrying about lost love takes away from the good or happy life you could be living now and is a shame to waste days crying over what might have been when you can learn and make yourself a stronger more confident happier you for another to love. Take from loss, and grow from it, no matter what kind of loss.
She always has said bother with people who pick you up, not tear you down, that goes for friends and partners.
What about all of you, what wisdom or wise words did you get from your grandparents?