Me personally, I feel, "
For Better or Worse..." the vows, just over time, especially (sorry) but w/those DA reality T.V. shows not really helping any, etc.
But
marriage, to me anyway, I mean unless you're in danger, the
vows - spiritually are there for a reason. Otherwise, just date and get on w/it, internet - wise when things get tough or you happen to have a short-term attention span.
Alzheimers, if it were my spouse, I'd stay w/him, BUT I'd also investigate resources to help out.
Sexuality, if someone can't perform (which is different from won't) but either way, if your marriage still retains the
value it once did...way back when, there are ways to relieve yourself w/out making it an all-round social deal or excuses to do whatever, whenever.
10 yrs. ago a teacher confided there was an STD epidemic, the public knew nothing about....I'm like why don't they make a public announcement or something?
Her words..."Politics. They don't want to alarm the public how badly it really is..."
Back to marriage...marry your
BEST FRIEND! And, stick w/them through thick or thin.
I'm hoping this doesn't offend anyone

But it pretty much sums up what (in my heart) marriage should be about) that 'once upone a time' thingy we start out with, but waves DO come and go.
How Could We See That Far?