<human>: Hi reddit ! 
I need thoughts about a question. 

So I have a wonderful dalmatian named Ibis who became 3 years old three days ago (time flies so fast !). 
Well actually he's my parents' dog. 

Ibis always wants to be the center of attention, and he always wants to be with us. He needs a lot of time, between playing with him or just cuddle him.

 It was really hard at first because, as the veterinarian told us, he's hyperactive. Anyway, we brought him to the dog trainer, and he improved a lot. We don't have any problem anymore. 

Before him, we had two other dalmatians, living together (they were mother and daughter). Also he lived with one of them for his first year, but she didn't like him... 

Sometimes I look on the national dalmatian rescue centre (I don't know how to call it, I'm not a native...) and once (last year probably) I saw this deaf dalmatian born almost on the same day as Ibis. My father and I almost agreed to take him. But a family took him. 

However yesterday I just looked after a very long time and I found that this dog had come back to the centre, because the family couldn't handle a deaf dalmatian anymore... (I read that he's also hyperactive) 
So now, I know that my father has enough time and love to take a new dog, however what I don't know is how Ibis shall take it. He's not very social, so I'm afraid that he will get jealous especially since a deaf dog must need more time than a non-deaf... And I am afraid he will become aggressive or something. He really likes to be the one everyone look at. 
But I am also scared that the other poor dog will never find a family :( it was said that he needs another pet in the family to restrain his energy. 

What do you think is the best for both of them ? 
Thank you for reading and would appreciate any insight.

Can you give me the gist of the text in a nutshell?
<bot>: I want to adopt a deaf dalmatian, however I already have one whose kind of 'self-centered'.