Love is definitely not limited to only sex. Rather sex is part of love. But it is true that love and sex could be isolated. Passionate sex is possible without the element of "love" (as Love has millions + dimension), but for the love of sex (know what I mean).

Love takes a lot of sacrifice and compromise...and it changes dimension with time...I observed that deeper it got between two individuals, sex somehow reduced...coz there are so many other elements come forward. I better stop, otherwise, will keep going..lol