Please help translate this short sentence.

[DMG88]

Good day everyone.
I need some help translating this sentence to russian.
Thanks a lot in advance

"It's amazing how the lack of tears and the presence of a smile can be so heartbreaking."

[voron]

Heartbreaking as in making you feel very sad? I don't think I find the sentence coherent then, so I'll just translate literally:

Удивительно, как отсутствие слёз и присутствие улыбки может быть таким душераздирающим.

[DMG88]

Yes, heartbreaking as in "sad".
How surprising it is, that those 2 situations can make someone so sad.