Yesterday my mom noticed (at a funeral) that I wasn't praying or participating in the mass. She confronted me about it, and I told her that no, I am not Catholic. Apparently it's sinking in and she's a bit hysterical... crying and screaming that she doesn't know me anymore.
What do I do? I don't know how to react/behave when she's doing this. It's like she wants me to feel like I'm doing something wrong, but it isn't working, so she's getting hysterical.
*edit*
I gave her a hug when she calmed down and told her I love her. That seemed to help, a little. Based on her previous behavior in situations where I've done something "wrong," she will (in the future) make barbs and slight passes at my beliefs. (Already she made one: insisting my love of science is causing my social anxiety disorder.) The advice given in the comments is really helpful. I plan on making the most of it.
Why not consider prayer like some kind of family tradition, and do it anyway during family occasions? Whether you call it "prayer" or "reflection" or "meditation" or "introspection" doesn't change much.
Most people in my family aren't very devout, but I don't have any problem with going along with the motions of religious ceremony - and it's not hypocrisy, funerals and weddings are big important things that deserve respect - though I won't pretend that I believe in any religion or afterlife.
I consider religious ceremony to be mostly about community building and maintenance, not about the supernatural claims. Are you sure you also want to reject community bonding? I would feel hurt if my a bit kid rejected all family traditions, didn't want to participate in family activities, etc. - your mom is probably hurt for similar reasons.
She wants me to believe that it actually works. It's not that it's a family event, or something we do together. She just wants me to do it on my own and believe I am actually accomplishing something, other than just wishing really hard.
I could concede to the community bonding bits. That may appease her a little bit. Right now she seems to be insistent that I'll change my mind, and this is one of those "phases" people go through.