I don't know to what extent her share in the house will be considered community property in her new marriage, but it shouldn't impact you in any case. Her share of the value of the house is what it is, and the new spouse isn't on the title or the mortgage.
Spousal support should end with the remarriage, but it doesn't sound like you've had any court-ordered alimony. If you've been paying "infomal" spousal support you should stop, but you may not be able to recover anything you've paid since her marriage since it wasn't really alimony.
I agree with MM, it's high time you get all this cleaned up and you can force it via the court if you want to even if your ex isn't voluntarily cooperative.