I switched to e-cigarettes and I cough less, have a better sense of smell and taste, and I feel healthier, what's the problem?

Just because you feel better doesn't mean that you are "healthier". We don't know the long term effects from vaping yet. It certainly will NOT be the same as with traditional cigarettes but e-cigarettes will have their own disease profile. 

Part of the problem is with the flavors--while they may be GRAS for ingestion, most have not been tested for inhalation. 
e.g.  Lawsuit Filed Against Butter

Help! I quit smoking but I'm going out to dinner with a couple who both smoke. I'll be surrounded.

You will be surrounded by smokers only if you allow it. I have no problem telling smokers that I choose to not be around second hand smoke due to MY health issues. I don't tell them they can't smoke, only that I won't be around it. I hope that you ask to sit inside in a non-smoking section and allowed them to go outside when they want to smoke. If they insisted that this is unreasonable then I

Now Available in Print: "How To Win At Quitting Smoking"

My book is finally available in print through Amazon.

Unlike other books on the subject, "How to Win at Quitting Smoking" focuses on the process of change instead of a single method. Proven evidence based strategies are given in a motivating manner, often in a smoker's own words. Easy to understand analogies are used to explain some of the complicated psychological processes of change. As a