In many asian countries people (mostly older generations) equate a happy life with getting married, having children, and finding a job with stable income. Therefore, the seme is asking y the uke isnt trying to accomplish these ideal conditions and become happy. If he continues his current relationship with the seme without getting married he maybe thinking that neither of them will end up living happy lives.
Oh thank you. I didn't get the point of asking him that, I mean could seme be willing to see uke married? Or maybe was a way to see uke's reaction, in that case could have been easier telling him to have a steady relationship
I understood right: the uke was searching for a wife? Why does seme said to him "Aren't you getting married?"?