I like that, DM, thanks....and thanks everyone. I think I instinctively know that I would be calling out of obligation more so than for any other reason. Sending a card was enough, I think.
On another note, I just found out (like, a minute ago) that my mom dropped me as a "friend" on Facebook because of the museum incident. How extremely childish can you get? Some people, I swear....I am biting my lip to not write a nasty email to her. But that would be walking in her shoes and stooping to her level. And I am stronger than that. There's no point at all trying to reason with UNREASONABLE PEOPLE! It is just so hurtful to be treated like sh*t by your own mother.