I think it is slightly different, because posting happen,when they happen and you have no say in the matter.
And when they go away, pepople are often taking pot shots at them.
And when you move, you may well not know anyone within a radious of several hundrad miles, and have no family back up at all.
And when shit happens in that situation, it is very hard to cope.
And yes, we do know what it is like when we marry them. But that doesn't stop things being tough.
3 months after my dh and I got married He went into work for a lock in exercise and two of our friends crashed and died. In the first 5 years of married life, we lost 5 friends.
That tends not to happen much in ICT