The signs of love - A Muslim philosopher's view

"A man in love will give prodigally to the limit of his capacity, in a way that formerly he would have refused; as if he were the one receiving the donation, he the one whose happiness is the object in view; all this in order that he may show off his good points, and make himself desirable. How often has the miser opened his pursestrings, the scowler relaxed his frown, the coward leapt heroically into the fray, the clod suddenly became sharp-witted, the boor turned into the perfect gentleman, the stinker transformed himself into the elegant dandy, the sloucher smartened up, the decrepit recaptured his lost youth, the godly gone wild, the self-respecting kicked over the traces – and all because of love! [..]
You will see the lover, when unsure of the constancy of his loved one’s feelings for him, perpetually on his guard in a way that he never troubled to be before; he polishes his language, he refines his gestures and his glances, particularly if he has the misfortune and mischance to be in love with one given to making unjust accusations, or of a quarrelsome disposition. "

Read more and tell me do you agree with Ibn Al Hazm's analysis ?
How many of these signs have you experienced and do you have more to add ?