He has not "hands off" (no offense taken) His kids have been taken on all family vacations and included in all events at our home. She wanted us to pay for part of the wedding but told us she did not want our opinion or advise about any of it as she "has to be in control of my special day." After he voiced his concerns to her, she would not accept and monetary help for the wedding and has cut ties. Really, Really childish. I would not tell my husband to keep his mouth shut. He is not my child! lol
Possibly
I will admit I get both sides of the situation here. Input from a parent can carry a lot of weight but if it comes off in a "you're crazy you're going to find out just how bad of a decision you've made, you're not ready, etc" well yeah that can turn the person the other direction..right towards those who already fully support their decision.
I get that your husband has sent valentine's day cards and gifts but depending on how it all went down and how she actually feels it could seem more of an insincere attempt at reconciliation. Almost like "hey here's a card and gifts (even if that is the norm)...forgive me now??". Obviously none of us are actually involved in the situation so it's a bit hard to really get an understanding of the full situation.
Believe me my sister-in-law (now 20) and her husband (now 21) are not ready for the full marriage life even after having been married for over a year and are still be heavily supported by their families (just last week the sister-in-law asked for gas money from her mom....) and we all knew they didn't have the maturity aspect but as controlling as the mother-in-law can be she fully supported her daughter. I personally don't like how financially dependent the kids are but 99% of it is due to how they were raised not their age.
And with no offense meant but when you say "she would not accept and monetary help for the wedding and has cut ties.
Really, Really childish." that comes across (at least to me) like the it was either your and your husband's way or the highway and because she didn't accept financial assistance and decided to not invite you guys to the wedding you view her as childish. It could very well be that to her it wasn't worth the stress, the worry, the feeling of not having support for her dad and whatever led to the fallout to invite you guys to the wedding and honestly it could be that not inviting her grandparents (even though I totally feel for the grandparents) was just easier than having them there but not you and her dad. ETA: I get that there was the issue of her wanting financial assistance without the input (maybe she viewed that as trying to control the situation since she found out you guys didn't approve of the wedding so she decided to go without financial assistence and you guys)..but TBH that to me is a whole different issue/thread of giving financial assistance=you get input/heavy input into the wedding but no need to open that can of worms lol.
Generally speaking people aren't like light switches. Emotions and feelings and past issues generally can't just be turned off many times. It appears as if you wanted it to be fixed enough where you could be invited to the wedding but that may have been unrealistic given what she has going on in her mind. It may have not been enough time and regardless of your viewpoint on the marriage the aspect of time needed should be respected. Perhaps after the wedding when things have had a time to adjust you guys might all be able to reconcile.
Now for sure there are issues on the bio mom's side so yeah TBH it's an all around mess I agree.