TEA

The guy in the photo is unconscious and his movement with his hand to "strangle" the girl is just a form of what I like to call "Couduling" with her unconsciously.  This means that his love for her should not be in question.  You could tell that they were not in this position when they first started sleeping.  The guy is getting sleep and soundly knowing that heir love is true but the girl who is touching her head demonstrates that she is thinking about their relationship.  They probably just got into a fight and have just made up.  They are on their way to Romania so they were probably trying to figure out what they are going to do when they get there, it has been a long day and now at least of them is going to pass out.