confused if I’d heard right

[cheelv]

Dear gracious teachers,

I would be very thankful if you want to help me understanding the meaning of this phrase. Here is the context:


“Shut up, you abandoned orphan!”
Silence. Steve's laughter vanished in a nanosecond. I sat up straight, confused if I’d heard right.

What actually the author try to say? I'm a non-native, and this phrase makes me confused.

Thanks a lot for your help

Cheelv

 

[Soup]

Here is the context:

“Shut up, you abandoned orphan!”
Silence. Steve's laughter vanished in a nanosecond. I sat up straight, confused if I’d heard right.

He was confused because he wasn't sure if he had heard the words that he heard: did the person say "abandoned orphan!" (an insult) or did the person say something else, something that wasn't an insult?

 

[cheelv]

Phew, finally I can understand it.

A million thanks, Mr./Ms. Soup
What a help :-D