What is the most intense interpersonal environment you can imagine?

What I have just been through amounts to a marriage: both more and less. For the first time in more than two weeks, I have just spent a full hour without Josh Sunshine, my partner in life from July 22 to August 8th. Excepting brief conversations in passing, we were each other's only company the entire trip, and spent almost every waking and sleeping moment within two feet of each other. We had to deal with this pressure-cooker of a relationship without the benefit of make-up sex to ease tensions. Of course, we both knew it would only last seventeen days, as opposed to the long and winding road that married folk sign on for.
I have much more .... much more....but it will not come now. The time is 3:30 am in Rome.