Which is most important!

Which is most important intimacy or sex? What is the difference between intimacy and sex in a relationship? In my opinion I think intimacy is most important because I think that it lasts longer. Intimacy does not have to just happen in the bedroom, it can be a number of things. Like a long kiss before heading out the door, Holding hands walking down the street, The way he looks at you when having a conversation,Just cuddling on the couch watching a movie, And at night laying side by side him whispering sweet nothings my ear, with a kiss and maybe a promise of more.
On the other hand sex is the finale act of intimacy. It can be quick and satisfying some nights. while other nights can be teasing and daring.And when It's all over We return back to intimacy. What is most important to you?