Sex experts say:

"Men can sleep with women they don't love; closing their eyes, turning off the lights, they can settle for it, but they will never give their lips to someone they don't love.
The intertwining of lips and tongues between the sexes, the blending of breath, without love in the heart, is fundamentally impossible. You must know, a passionate kiss is the deepest intimacy a man can have with a woman."
Does this passage instantly reveal many truths about intimate relationships?
Men can give their bodies to someone they don't love, but they will never give their lips to someone they don't love.
Many marriages have long lost kissing.
He still fulfills his duties as a husband, comes home on time, and hands over his salary.
You eat together, sleep together, help the children with homework together.
But, that's all there is.
Kissing has become a luxury between you, even an awkwardness.
You no longer instinctively seek his lips when waking up in the morning.
He doesn't naturally give you a good morning kiss when he comes home from work.
It feels like there's a transparent film between you.
You can see each other, but can no longer feel each other's breath and warmth.
What is a kiss?
It's delivering your lips, exchanging breath, a brief encounter of souls.
It's that moment when you open yourself completely to me, and I accept you without reservation.
You can close your eyes during sex, but you must open your eyes during a kiss.
Because you need to look into each other's eyes, feel each other's emotions, and accept all of each other's breath and life.
So, have you noticed?
That man who still gently kisses your forehead after passion fades.
That man who, amid the mundane and trivial, still habitually greets you with a kiss in the morning and at night.
What he gives is not just the satisfaction of desire.
What he gives is acceptance, cherishing, and the affirmation of "I see you and still love you."
Someone who can kiss you doesn't necessarily love you;
But someone who refuses to kiss you surely doesn't love you.
Physical closeness may stem from instinct or duty.
The intimacy of lips and teeth, however, is only loyal to inner love and closeness.
This isn't pretentious; it's the deepest honesty of human nature.
Many women wither in marriage, not because of a lack of sex, but because of a "lack of kisses."
That cold, procedural, action-only intimacy without communication hurts the most.
He touches you but doesn't want to "feel" you.
He wants you but doesn't want to "taste" you.
Sex without a kiss is just mating.
Sex with a kiss is love.
So, stop obsessing over whether he loves you or not.
Look at whether he's still willing, in sobriety, in broad daylight, to gently and attentively kiss you.
That’s not skill; it’s instinct.
That’s not desire; it’s tenderness.
Kissing is the highest emotional value a man can give.
May the person beside you not only share physical pleasure but also exchange sweetness and breath through your lips and teeth.
That is the deepest intimacy in this mortal world.