Hmmm.. that might be impossible because both of them aare half half of each other which makes them whole, if by chance one of them leaves, one will die, so no one will forgive... lol
Wait didn't that happen in some other bl manga
Or they just have their own baby, it's possible now with another women: to carry the baby, of course.
they could just adopt
Yeah I saw one yaoi manga with that kind of procedure
This is my own future analysis for the 2 love birds, S later leaves and get married after college, T gets married too but later his wife dies during child birth while S and his wife divorces because he couldn't forget T and he also has a child, they reunite years later and decide to be together for eternity, T forgives S for leaving, the move in together with their two kids. The End