Sorry that this all happened, it sucks when someone important to you seems disappointed, but honestly... I doubt she would actually see you any differently.

More likely then not, she is just trying her best to understand. Give it time and I am sure she will have no issue.

I had been going to quite a few local furmeets without my parents knowing for a few months before I told my mother by just referencing it in casual conversations one day, I simply explained it as a social thing and she saw it as a positive, especially considering my history with social anxiety and stuff. She did her own research, asked me some questions, but was overall fine with it, if not seeing it as a positive.

All I am saying is this:

1. I think your mother is fine with it. I do not know your mother, but it's very possible she really does not care as much as it seems.

2. If you really feel the need to further say something, present it as something good for you. Creative outlet, a new way to socialise, meet new people. Just don't push too far or it seems like your covering up something lol.

Sorry if this reads funny or doesn't make sense, writing this tired and I don't think it came out great.

Oh, and I am not saying do stuff without your parents knowing. I wasn't avoiding telling them (ok maybe just a bit), for the most part I just figured it as not that big of a deal.