You don't owe her an apology. Friends should respect your choices (hell, even strangers should) even if they disagree with them. All the trite slogans she threw at you are irritating and thoughtless. If anything, she should apologize to you for being unoriginal. In my experience, people like that aren't your friend. There's no reason whatsoever to get upset by a choice that doesn't effect you unless you're a controlling jerk. And no, you didn't blow it out of proportion. Your initial reaction is usually the correct one. Nobody wants to be told their feelings are invalid or "wrong".

Not to hijack, but a similar thing happened to me when I reconnected with my old friend from high school via Facebook (always a huge mistake in my case). We initially stopped talking at 19 because I began working and she got knocked up by an alcoholic singer for a local band. At 19, she was already telling me how dumb I was for not grabbing a man, any man, and getting pregnant. The last time we hung out she brought up the fact that I still didn't have children and wasn't married. She told me "I feel so sorry for you. You don't know what true love is until you have children or a husband. Your life is so empty that it makes me sad for you." I actually started laughing because everything she said was just so fucking ridiculous. I basically told her she was an idiot but she kept pressing me and told me I'm going to die alone, etc. She got mad when I wouldn't date an ex con friend of her ex-con husband's (despite the fact I had a bf at the time) and unfriended me. I saw her just last week at the store with a gaggle of kids (presumably her husband'swhatoking wore the hell out and about 75 pounds heavier. She gave me a haughty look and then turned around to glare at me. It sort of hurt to be honest because I didn't do anything to warrant that kind of shit reaction, but then I realized she was never my friend. I don't give a damn what strangers think of me or my choices and I shouldn't care what some miserable old twat I used to know thinks either.