Domain Mapping not redirecting to primary domain

I noticed today that one of my WPMU sites is being redirected to the wrong domain.

I have several domains pointed to dg.gracesites.com, the primary is set to disciplegeek.com, however for some reason treyandchristina.com is the domain that it redirects to.

I deleted treyandchristina.com and it started pointing to one of my other secondary domains, not disciplegeek.com. I deleted disciplegeek.com and readded it and treyandchristina.com making certain that disciplegeek.com is set as primary and the system started pointing back to treyandchristina.com again.

Something isn't right here. I just hope its not affecting my other sites like this.