It feels easy, like you already know how to be around each other. The risk is you stop choosing it.
The two of you
Scorpio. You feel real when it is honest, even if it is heavy. People see the intensity. They trust you with the thing they will not say elsewhere.
Cancer. You feel real when the room is safe. People see the care. They come to you when something hurts.
What wears it out
Small talk that asks you to be fine drains you. So does a secret kept from you.
A cold room drains you. So does having to pretend you do not mind.
Scorpio feels it first and explains later and does not like to be moved once settled. Cancer feels it first and explains later and starts things.
Wanting each other is not the hard part. Staying awake to each other is. Comfort can turn into taking the warmth for granted. Together, it shows up as the bigger plan, farther away. The other way around, it shows up as romance, play, and being admired.
This is the answer people want before anyone knows a birth time. Two real people have more than a sun sign. If it matters, cast both charts.