I've read things on this board about reasons why marriages fall apart and sometimes, it's for the absolute best. The marriage has become a bad thing for both parties and for the kids. Mental health issues. Infidelity. Trust issues. Drugs. Whatever.
But what disturbs me about this, assuming the OP isn't fishing, is the casualness. I mean, when you step up to the preacher or justice of the peace and you say "for better or worse, in sickness and in health, forsaking all others, AS LONG AS YOU BOTH SHALL LIVE." That doesn't mean, "until I get a little bored and a hot piece of ### that I have always been attracted to comes around."
I mean, come on. Doesn't your vow mean anything?? I am not so naive that I think that all marriages are gonna last forever. I've had discussions with my pastor who told me he has recommended divorce sometimes because a marriage was so far gone. This doesn't seem like one of those times.
The OP doesn't seem to realize that love is not just a feeling in your loins. It's a commitment. It's being willing to sacrifice. It's a decision. Feelings are only a very small part of love. Feelings come and go. That's why love has to be conscious will because if you leave it to feeling and emotion, nobody would stay married. I love my wife dearly, but sometimes I want to throw her through a wall. That's what marriage is. Getting through those days and telling yourself that how ever you feel at this particular moment, that's my wife. That's my partner for life. The days where you are all over each other, those days are easy. Anybody can do that. That's not what love is. Love is getting through the hard days.