Nothing about the sonnet is perfect for the love poem, either. Genre simply provides a way for the reader to look for things that have been done. A form is a useful thing to use. It has history and resonance. It informs you as to the way things have been done in the past.
“He who has talent in him must be purer in soul than anyone else. Another will be forgiven much, but to him it will not be forgiven. A man who leaves the house in bright, festive clothes needs only one drop of mud splashed from under a wheel, and people all surround him, point their fingers at him, and talk about his slovenliness, while the same people ignore many spots on other passers-by who are wearing everyday clothes. For on everyday clothes the spots do not show.”
Nikolai Gogol