I have a few questions about chinchillas?

I have 2 chinchillas that I got about a little over a week ago.

One is male and one is female.

Well I got them from a show breeder and my female didn't really get a long with the breeder.

But since I got them I have been putting my hand in the cage talking to them and letting them nibble on me and my female named Sunny started to jump on my arm and jump off.

So you know I never used treats because my breeder talked to me 2 weeks before I got them to not feed them to them. Because the treats are very bad for them.

So I let the Sunny on and off my arm but now she wants on my shoulder but I am really scared to let her on my shoulder because I am scared she will jump off and run away.

But today she did something strange that she has never done before. She jumped on my hand sniffed it and put all for feet on my hand and tried to like snuggle it. She kept trying to get as close as she could to my hand then she would sit there for a few minutes and do it all over.

What does this mean?

OK I also have a male named Reeses. My other question is how fast do chinchillas like people?

I have read it can take months but is it normal to have 2 chinchillas come right up to the door of the cage every day you come home. And look at you and want to be on your arms? I put my arm in the cage and either one will be on my arm even if I am just feeding and watering them.

I have held both of my chinchillas because they jumped in to my hands and sat there for a few seconds.

Thanks for the info.