I wouldnt let it get to ya, except for the "go back to your own country" comment, that was uncalled for. Shes probably the kind of person that yells at you to slow down while driving 15 mph down her street, coughs and gags when she sees someone smoking a mile away....etc. I was vaping away one day outside of work and this woman walked by and started coughing and waving her arms like crazy. She yelled at me to put it out because she was allergic to cigarette smoke. I laughed and asked if she was allergic to showers too, since she coughed when walking through water vapor. Didnt help at all, but made me feel better.
While vaping in public is appealing at times, I try not to vape around ppl due to all the negative feelings about smoking, in addition to ignorance around vaping. Looks like a cigarette, must be a cigarette kind of mentality (which I can sympathize with). I didnt smoke around ppl either, no need to impact other ppls health due to my poor life choices, so it wasnt much of a change for me. Chances are if someone is rude enough to say something to you, they arent going to listen to a word coming out of your mouth about vaping anyway. Ive experienced a few exceptions to that rule, but not many. IMO, life isnt that fulfilling if Im worrying about what other people say or think. Just keep in mind that it looks like smoking to everyone else and some people are still just plain ignorant and rude no matter what.