Erza didn't expect that test to come back positive. I mean how could he? Every time he had actually tried before he couldn't hold a pregnancy. It was no secret he had issues holding children. So why had his body chosen to keep this on and why with him?
When you marry someone you expect the honest truth. Not to be played because of the role you play. Rune Ross Is a Mafia Boss who married a high rated cop. Row Ross is married to mafia & he doesn't even know, what he thought was love is just a job. When it all comes out, who will be victorious?will they both fall from their high classes?