household
Could be business partner, dance partner, undomesticated sex partner... don't stereotype sir marlboroza.
@OP, is any of these accounts yours or they are all created by your partner?
It sounded to me like the OP was trying to pin all those accounts on the "partner", what with all the self-exclusion bullshit.
Since the gambling sites are getting into the habit of not providing any evidence of their claims, I'm gonna use Bitcointalk sockpuppet linking as a guideline here. Blockchain evidence (same wallet) - most likely alts. Betting on table tennis - not alts. Betting and winning - not alts.