Yes, this sinful attitude can be very destructive. All sin is destructive. It always hurts someone else and destroys you. Maybe not immediately, like murder would, but it does destroy somebody at some point. Love your neighbor, love your enemies, love your self, love God.
Love never gives up.
Love cares for others more than for self. Love doesn't want what it doesn't have. It does, however, take pleasure in the flowering of truth, puts up with anything, trusts God always, always looks for the best, never looks back, but keeps going to the end. Love is a tall order, one only God can do through us. We could never love this way on our own.