Sexual attraction plus a sense of security are essential for men and women to maintain a long-term relationship.

In long-term intimate relationships, sexual attraction and a sense of security are like two inseparable engines; without either, the relationship is unlikely to go far or remain stable.
Many people are unwilling to admit it, but sexual attraction is indeed the most fundamental starting switch for a relationship. When you first feel strongly pulled by someone, is it really because they “share the same values” or “are reliable”? Rarely. More often, it’s when their walk into the room makes your heart skip a beat, when they smile and look down that makes you suddenly want to get closer, or when you’re close together and there’s that inexplicable “chemistry” between you. This attraction isn’t just about visual appeal; it also includes:
– Their scent (there’s scientific evidence that compatible body odors are pleasant to smell)
– The tone, rhythm, and eye contact of their voice
– The unspoken understanding in body language
– Without this dimension, true compatibility and spark in bed
can only exist as soulmate-level friends—able to talk to each other, appreciating each other, but physically unable to arouse desire. Friends are certainly precious, but most people don’t want to have sex with a “good friend.” Sexual attraction is the fuel that keeps a relationship “hot”; without it, it easily turns into lukewarm water over time.
But sexual attraction alone is far from enough. I’ve seen too many couples who started off passionately and were instantly attracted to each other, only to break up in the end. It wasn’t that they stopped loving each other, but rather that staying in the relationship was too tiring and draining. At this point, the problem often lies in **security**.
Security isn’t something that can be given by the other person simply being “good to you,” nor is it something you don’t need if you’re independent enough. It’s a cyclical system that two people build and maintain together:
you dare to reveal your vulnerable side because you believe he will accept it;
he accepts it gently and earnestly time and time again, and you’re more willing to open up next time;
this positive cycle of “opening up—being accepted” continues, and the sense of security grows stronger and stronger.
In reality, what destroys it is often not a momentous event, but the daily accumulation of small disappointments:
– You say you’re feeling down, and he replies, “You’re overthinking it,” then looks down at his phone.
– You earnestly want to discuss a problem, and he impatiently says, “Okay, stop talking,” and changes the subject
. – You muster the courage to approach him, and he instinctively takes a step back.
Every time he misses you, a brick crumbles in your belief that “he/she will catch me in a crucial moment.” Over time, you stop speaking up—not because the problem is solved, but because “it’s useless to talk about it, so it’s better to keep it to yourself.” So both of you feel that “the relationship has faded,” but you can’t pinpoint when it started. It actually begins with these unnoticed little cracks.
The opposite of security isn’t “danger,” but the helplessness of “it’s useless to talk about it.” Once this cycle breaks, no amount of “I love you,” material compensation, or sweet words can mend it.