Love is separate from sexual desire
In some cultures, love is considered a totally separate phenomena to sexual desire, to the point that love may be marred by sex.
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Many cultures spurn sexual desire as part of love, believing it to cheapen or dirty the experience of authentic, pure love. For instance, in some South Asian or Chinese cultures, sex is considered to actively have negative health effects. Sex is often depicted as "polluting, repellant and risky... surrounded by multiple taboos and restrictions". This is often due to a societal prioritisation of chastity. Perhaps best illustrating how this rejection of sexual desire can influence cultural attitudes to love is Manus Island, where reportedly sexual desire is considered unrelated to love so wholly that an illicit love affair may consist only of sitting, talking and laughing with someone.
[P1] Love is completely unrelated to sexual desire, and can indeed be actively marred by it.