No play or download button for Sims4

I have no idea what happened here.  I personally has never had a steam account.  The app is installed in our computer, but only my husband has an account and he hasn’t played in weeks.  I tried to open Sims4 today and it suddenly said “managed by steam” and asked me to login through that.  I saw no reason for it suddenly to be linked to steam so I went to my account settings and lo and behold my ea account was linked to his steam so I unlinked them.  I restarted the computer, tried to reopen the ea app, and now it only says that I own the standard edition of Sims4, but there is no play button.  It also says my program file is located in the steam file and it’s now only on my husband’s account.  I can’t redownload it either from ea because the download button is greyed out.  What do I do???