Reason for attracting to others' loneliness

I’m wondering

— actually I’ve been wondering for over a decade —

"Why am I always attracted to a person who has 'This'?"

"This" can be;

loneliness
pain
hurt
sad

or simply;

something fragile

To some extent,
I know the reason

The reason is;

I have the same thing inside me

And a certain sympathy arises between us

And I would feel "healed" or "saved" from "This",
even if it's just for a moment

If there is someone who feels the same, then
I can think;

"I’m not the only one"
"I am not alone"

In other words, I can think;

"What I feel, my sense, my emotions........are not wrong, it is right to feel this way........"

as if my existence is approved & accepted