I didn’t downvote you, but the OP’s comment doesn’t seem to me to reflect “burnout” as it is described in that Wikipedia article (e.g. the Tracy quotation “burnout is largely an organizational issue caused by long hours, little down time, and continual peer, customer, and superior surveillance”). Then again, I’m still not sure I understand either a formal technical definition, or quite what people generally mean when using the term colloquially. Seems like a broadly and fuzzily defined term.
Yes, that was exactly my point. Burn-out is a (very) serious condition that can have many consequences, including depression.
To say 'you're burned-out' and to say that 'you need a break' combined with the statement that his gf keeps him from being burned-out half the year indicates a use of the term burn-out that does a dis-service to both those that are really burned out (because someone might read this and think that his friend that is really burned out needs a break whereas in fact what he needs is a radical change of career path or professional help to avoid worse) and to those that will pick this up and think that they are burned out, when in fact all they need is a break or a change of scene.
To me the OP does not sound burned out but has reached a phase in his work where the normal tricks of the trade aren't enough to put him back on a productive path.
Compare that with the symptoms listed for burn-out in the wp article and see if you can match them up, it's a lot less fuzzy than you imply and from what I know about the subject once you are burned out you are not going to cure it easily and permanently.
There's nothing I said that conflicts with the Wikipedia article. As someone that has seen a medical professional related to burning out, I can say with confidence that some R&R coupled with a change of pace, and focus can be very helpful in shortening or delaying burn out.
Next time I'll make sure to include elaboration, just in case someone misinterprets my brief statements with an official definition.