CathInfo.com

The bride and groom administer the sacrament; the Church witnesses it.

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Yes, thank you, I should have been more precise. Of course you are correct that the sacramental ministers of matrimony are the bride and groom. When I said the Church administers the sacrament, I meant that a priest performs and witnesses the ceremony of matrimony and records it in the parish records. At the very least. And usually he has to get to know them a little bit and provide them with marriage instruction and make sure (in theory???) that they are both free to marry and are doing so of their own free will and understand the nature of the contract they are entering into.
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When I said the Church administers the sacrament, I was referring to all of the latter part of that. So the Novus Ordo Church, by its own admission, is incapable of ... how should we say this? ... presiding over or witnessing matrimony in such a way that the sacrament is confected validly.
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For these "annulments", one would think that, if the ceremony that was done the first time was done in a way that everyone involved thought it was valid, but somehow is later determined to have "not been valid", then if one of those same people go through the same ceremony again with a different person, in a way that appears valid, how will anyone even know if it is valid or not? And if it bears the same appearance of validity that the first one did, then doesn't that mean that, to all appearances, it will not be valid either?
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The whole notion both in theory and practice is contrary not only to theology, but even to common sense, and it is obvious that it is nothing more than a fig-leaf to cover divorce and remarriage under the pretense of canonical terms that have been completely redefined to mean something totally different.

In my case my "husband" was found to be "too immature".

He was 26, owned his own business as a financial planner, college grad, president of parish council.

Sigh.  Whatevs

If he "remarries" he won't have to prove he gained any maturity.

One thing I do wonder about is that I went into it with the understanding that divorce was not an option although separation would be if necessary for safety.

He went into it believing that divorce is an option and "you can always just get an annulment".

Did that belief keep him from giving full consent to the vows?

And who is responsible for leading him to believe such a thing?

He went into it believing that divorce is an option and "you can always just get an annulment".

Did that belief keep him from giving full consent to the vows?

That's actually possible.  Whoever did the marriage prep dropped the ball.  Maturity is utter BS, but if this guy went in with the notion that marriage isn't necessarily permanent and for life, that could certainly have vitiated his intention.

If I were a priest, I would make both parties sign a docuмent which clearly states that they freely accept all that Catholic marriage entails or else I would refuse to marry them ... so there isn't any of this funny business later.