Same here, was working in a charity shop, some lady came in offering a baby car seat and i had to explain that we couldnt take 2nd hand baby items for health and safety reasons, so she says well do you want it then, it will save you buying one if youve not already got one. I mumbled something about no i didnt need one but was dying inside, and she left pretty sharpish once she realised what she had said. Ive since had it happen a few times, i once left a job because a few people had mentioned how i looked pregnant and as id laughed along it became a running joke that got really tired pretty quick, i used to cry and suffered low self esteem for a few years because of that.
The most recent one was when id just had ds, he was probably around 5 months, and a lady offered me a seat on the bus, i must of been tired apparently as i had a young baby and anoter one on the way.
When will people realise were not all superstars with personal trainers, sometimes the weight doesnt just ping off as soon as the babies here, its 11 months down the line, ive put on half a stone but that gives you no right to insult me!
Next time p ask the neighbour has she had any plastic surgery, if she says no, say oh me and dp were chatting saying how good you would look with a new nose/facelift etc. She obviously feels she can talk to you very openly so i wouldnt worry about offending her