Can't you just talk to him directly? Present your arguments in an honest and respectful way, then see what his reaction will be. There's a good chance that you will be able to resolve the situation without much of a fuss. He might even appreciate the feedback.
When things go side-track (i.e. really bad) talk to his supervisor.
The solution is rather simple, actually: take a break. Real break. Seriously. If you keep pushing it, you will only end up being in a much worse situation.
Do something light for a while. Spend more time with your family, close friends etc. Try something new and interesting. Then, after a time, ask yourself again what you really want to do and simply start over. By that time you should be level-headed and open-minded about your previous venture and use that experience to your advantage. Either bootstrap one of your ideas, join a start-up/company that you like or, well, do what you always wanted to do.
Naturally, take this advice, like any other, with a grain of salt. I'm not you; it's your life.
This is a good example of what happens when a driven person finds a problem that, in his opinion, needs fixing. In this case Steve Jobs, who's famous for his keynotes, speeches etc., found that existing solutions do not suit his needs and, what's more important from the business perspective, there's a bunch of people who feel the same. So, as a brilliant entrepreneur, he made the Keynote happen.
Tornado is great as a standalone API/WWW server, but for WSGI-based environments, like Google App Engine, I would choose Flask (>= 0.7.1) over any other framework.
Flask, despite being a micro-framework, is extremely powerful. It's core is well-written and there's a lot of useful extensions out there (like Flask-WTF or Flask-Assets). Flask also works really well with Google App Engine (see example skeleton: https://github.com/kamalgill/flask-appengine-template; there's more on GitHub). With little effort you get WTForms and even Webassets support almost out of the box, in really elegant way.
Tornado will also do, since it's very similar to webapp and has very good templating system. However, since extensions ecosystem for Tornado is almost non-existent, one has to write more code to make up for it (e.g. integration with Webassets, management commands, OAuth support etc.).
There's also Tipfy, but I have absolutely no experience with it, so I can't vouch for it.
I have used Tipfy for a couple of projects. It is VERY lightweight and flexible, and comes with jinja2 templating built in. Basically webapp + some missing components, like Session management. It's not even as close to as robust as Django-nonrel for GAE but depending on the scope of your project it might be perfect
