Do be careful here because there's a new Insurance Act passed in 1996.
In this law, if the nominee(s) to your policy is your spouse or/and child or/and parents (for parents, at the date of the nomination, there is no spouse or child) then the nominee will get the money absolutely because there is a trust created. Check out section 166 of the Insurance Act 1996. It will explain further.
Whereas, if you nominate other persons, other than the above person(s), for e.g. your aunt, then she will receive it as an executor of the policy and is duty bound to pass it to your estate. In this case your estate means all the assets under your name that your beneficiaries can claim. This is stated under section 167 Insurance Act 1996.
Your beneficiaries, if you have a Will, will be those persons that you name in the Will. If you don't have a Will, then your estate will be distributed according to the Distribution Act 1958 as amended in 1997 and the beneficiaries are are your spouse, children and parents. So, your husband will be able to get the money because your aunt is duty bound to pass it to your estate as she is the executor.
To solve this problem, locate your aunt and do an absolute assignment with the insurance company. This will secure her position and she will get the money. There is a problem. If after finalising the assignment to your aunt and you change your mind deciding that you do not want to give it to her, you need her permission for the assignment to be revoked.
Suggest you do a trust for the insurance money with a trust corporation and a Will for the rest of your assets. There are a few good trust corporations. To name a few, Hong Kong Bank Trustee Bhd, BHLB Trustee Bhd. For the Will, you could check out Rockwills Corporation Sdn Bhd.