Head over to Account Overview and make note of the username listed (it may be numbers.) Then have your husband do the same.
Then in any Spotify client, go to the search and type "spotify:user:username" and his profile will come will come up. He can do the same and your profile will come up. From there you guys can follow each other and look at each other's palylists (if they are public.)
*Replace username with the username of the account you are looking for.*
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