networkn: My opinion is that they got married "because they could" (A very very poor reason). They got a bunch of stuff for being "first". Clearly the commitment wasn't really present to undertake something that deserved better.
Most marriages last better than a year, most people would try and save a marriage for longer than that.
Baseless speculation. You have no idea about their relationship or circumstances. I don't think you or anyone else without first hand knowledge of the situation can draw any meaningful inferences from their possible separation.