It depends on the terms of the policy. Insurance policies are contracts, and typically adhesion contracts construed liberally against the insurer.
Write them and tell them you want a copy of the policy. You can sue them if they breached the policy as an intended third party beneficiary.
There may be a "divorce" clause, however, or state law, that deems you not to be the beneficiary. I can't really give you greater analysis, since insurance clauses typically may have a choice of law provision, or other factors that impact what state the contract is governed by.