Do not wait for a lightning bolt. If you want this, you build it.
The two of you
Libra. You feel real when the air between people is fair. People see the ease, and the one who makes it pleasant.
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.
What wears it out
Being forced to decide while everyone else stays nice drains you. So does a peace that costs you.
Small talk that asks you to be fine drains you. So does a secret kept from you.
Libra needs to talk before it feels real and starts things. Scorpio feels it first and explains later and does not like to be moved once settled.
The signs sit next to each other. The feeling is friendly more than fated. That can still be a good love. It just will not carry you. Together, it shows up as money and what they keep. The other way around, it shows up as what they do not say.
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.