We only have 1 email address. spouse wont get/have or set up one. possible?

You can create up to 5 TurboTax online accounts using only one email address.

Why do you think you need another one?  Where?   Are you filing a Joint return or separate returns?  Joint is almost always better.   Online is only good for one return per account. But you can use the same email address for 5 accounts.

How to start a new online return
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-start-another-return-in-turbotax-online/00/25596

Email address are FREE and take only moments to set one up ... I have 10 of them.  So if you need one you can certainly get one.