Is there a way to determine if the same user is going to my profile on myspace under a different acct/comptr?

here's the deal..got an ex and possibly his spouse ckg my profile, i believe. cool with the ex..spouse of course is crazy! Im on Profilesnitch and Mix Maps...when he chks my profile its under one ip addy but diff. location (now he's sent me comments on my profile, Ive matched up comment time to tracked time....so I'm very sure this is his computer). at the same time there's a DIFFERENT ip addy, but same location as his...could this be from same computer just different acct and person.....i hope this makes sense. Plz answer if you know about computers...thanks so much..enjoy ur holiday wknd!!!!1