Well, here's what I sent back
"Actually, I did nurse [ds] as much as I could for 3 months, but with him going back and forth between bottle and breast he started slapping me on the chest with his fist when he nursed and eventually just refusing the breast altogether. Maybe it would have been different if I stayed at home full time. I'll never know.
I won't bring it up again as it's just too hard to explain to people. I wasn't trying to say that it was somehow easier for you in the beginning, i know it wasn't. You may not realize it, but you mention how easy it is to nurse him almost every time we have a playdate. I was just trying to bring that to your attention because I know that you don't mean anything by it but it does upset me, sometimes for the rest of the day."
And then her reply
"I guess I always say that because I feel like people are wondering why I haven't weened him yet, and I feel like I always have to explain. Everyone always ask when, when, when, well I don't know when and I don't want to feel like I should have to rush it if it is working for us, but I sure feel like everyone including my husband wants me to stop, so I am on constant defense of why I am still nursing. Anyway, I didn't mean to make you feel bad - won't bring it up again either."
So, I guess it's as Pruni said, everyone has their own issues about it and buttons that get pressed. She is nice, and I think we've managed to get this out without damaging our friendship in any way. I just so wish that it wasn't even necessary to talk about it. Dh can't figure out why it's still such a problem for me, and sometimes I can't either!