Yes, that woman was very annoying, the kind that irks me no end.

But - and I say this as an obese person, myself - her weight had nothing to do with it.
When you called her "tubby-gut" and referred to her "waddle," I felt hurt. And I know it was not your intention (cause I know you and your really nice!), but people do this all the time: criticizing an external factor that simply isn't relevant.

Fat is one of the last acceptable 'ism's - in polite society, it is still acceptable to make fun. :P
*steps down from reinforced soapbox* ;)

Still friends, dearie!
Just needed to share.:)