My wife and I were friends for several years before we realized we had romantic desires for each other. As it happened, the way our lives had gone we were both starved for affection - just simple, hey I care about you, want to share things with you, want to be in your company, and touch me please goddammit, nobody's even just touched me for soooo looong!! !!
In a way, affection is sex: sex on simmer instead of boil.
Affection can be all sorts of things, not just hugging and snuggling.
It can be a cellphone call like this, "Hey Babe, took a different road there this time and saw this conservation area park so pulled in to check it out. You have got to come see it when we get a chance! Bullfrogs jumping in the lake, iridescent blue dragonflies everywhere, and while I'm not the birdwatcher in the family, heard a Bobwhite. And there's really cool little bridge over the lake's spillway. And there's a little bitty concrete dock with a bench under a willow tree" You recognized something important to her and took time to find it, stop, and share it, and said to her you desire to share it together - and, importantly, you DO desire to share it with her.
Then "make an appointment" to go there together, giving her something to expect, to look forward to. Pack a lunch, or just snacks, go sit on the bench under the willow tree with her, share your snacks, and enjoy "being" with each other.
Then again, there's also times she likes me to grab her and say "You're coming with me, wench!"
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"Every time you don't follow your inner guidance,
you feel a loss of energy, loss of power, a sense of spiritual deadness."
- Shakti Gawain