How does God choose a spouse?
It appears to me that one can pray to God, listen, consult, think consider, but in the end one decides to pop the question and ultimately chooses.
If all goes well you might consider that God chose for you. But you don't have a note or any evidence to that effect. It is purely a faith that God guided you. If it goes terribly, the sort of person who thinks God guided them usually does not come to the conclusion that God got it wrong.
The process of thinking about it in a rational way and being considerate of other factors than say beauty or youth or her outward piousness, might, I agree, be a sober and mature way to make a better decision about who to marry, but I can't see how God's actual input can ever be tested, other than if the marriage goes bad then clearly it "wasn't God's choice" or you didn't listen hard enough.
I've never really got this 'listen to God" thing myself. I've been a Catholic for 50 years and never heard so much as peep back when I have prayed. I'd like to. I think it would be really exciting to hear voices from the other side.
God's call or presence in our lives is not in the thunder of Mt. Sinai, but in the quiet of our heart -- if we ever let it be quiet.
Seeing God's will is more about being objective and using reason than "going with your heart". God =/= emotion
I have some personal stories that really show God's guidance in my life, and in hindsight you can really see His providence.
I kind of understand what you're saying, but your post above sounds like the words of an unbeliever.
This is not about doing your due diligence, putting God first, and then end up being wrong and blaming God. If you have *moral certitude* that your spouse is a good Catholic, you will probably be fine.
With most failed marriages, there were clear signs that could have -- and should have -- been outed much earlier, had the couple seriously talked with each other instead of "dating" in a superficial manner. And like you yourself said: be a wise man. Follow the wise sayings. "Look at her family" and what not. If you do those things, you will likely be OK.
You have to do your best, and then trust in God for the rest (including the outcome and final results).
But doing your best needs to be a good faith effort, and only YOU know if you're putting in 100% effort on that...or letting a few things slip because "she's so darn hot".