Called by the devil herself..?

He he..
On my first day in Soerabaja there's a few missed calls with no numbers.
At the afternoon I managed to pick up the call and it was from a woman:
Me: Hello?
Her: Hello?
Me: Yes?
Her: Who's this?
Me: Huh?
Her: Is this Dewi?
Me: Yes. Who's This?!!?!
Her: No. Nothing important.
Click
She put down the receiver..
AAAAAAAAAAAAAAAAAA Who's that womannnnnnnnnnnn..
If she's a friend checking out or forgetting my number how come she
didn't say something like "oh.. it's me. Just checking out that this is
still ur number"
She said "No Nothing Important" in a chotto unfriendly way.
...
Might she be a ghost?
Or a jealous woman?
Or a predator?
AAAAAAAAAAAAAAAAAAAAAAAAAAAAaa....
----- Click ----