This is a really complicated issue and I'd encourage you to provide some more details. When did you open up the LLC? What state? Who sent you the letter about filing 1065? What's the revenue and expenditures you have and expect to have?
Generally speaking, a single member (owner) LLC is taxed as a sole proprietor (Sch C). An LLC with multiple owners is taxed as a partnership (1065). There are special "yea buts" for spouses you can read about here:
https://www.nolo.com/legal-encyclopedia/taxation-llcs-owned-spouses-community-property-states.html and
https://www.thetaxadviser.com/issues/2019/apr/llc-spouses-partnership-joint-venture.html.
My first concern is that even if you dissolve the LLC, it will still have been technically operating for a period of time so the IRS and state tax agencies will still be looking for a return even if it's a zero return, especially if they're the ones that sent you the letter.
Whether or not to dissolve it depends on your goals and the costs. If you and your husband want to be equal co-owners, then you shouldn't dissolve it. But if the extra costs, including tax filing, aren't worth it, then you should consider dissolving it.
It sounds like maybe you didn't know what you were getting into when you created a separate legal entity for business. I've seen this happen to a lot of friends. They create an LLC because they think that's the first step in starting a business. But you can start a business and then incorporate later, once you have enough revenue to support the extra costs of a separate business entity. If that's the case for you, I'd recommend terminating the entity and starting with what matters most, which is making sales.
