In *Star Wars: The Force Awakens*, when

 >! Han Solo died,

Leia became aware of it instantly.

Yes, Leia is force sensitive, but when Alderaan was destroyed, Obi-Wan heard billions of voices crying and going out of existence which is generic. When

 >! Han Solo died,

Lots of people were also dying there. How could Leia intercept particular death signal provided that

 >! Han wasn't force sensitive?

Talking about love, when Padme died, Vader never sensed it. Then, how come Liea sense this?