What you say about love and sex. I think love is a need without love we felt empty like world without water but in case of sex there are some difference. on other hand sex is a want and we can live without sex but can never live without love.
Both are require to lead a healthy life. Imagine, if there's a deep down burning desire comes in you, what would you do to satisfy that, with or without your partner ? Pardon me if iam not sounding sensible.