Thanks for the replies! Great news for me. Hope the adoption thing is in the base game too.
definitely in the game.
Also, divorce.
Also, you can kinda be 'dating' multiple people, and unless you're married to one of them, the others don't really mind. (as in - you won't lose relationship points with person A, if you choose to enter 'relationship-level' friendship with person B, unless you were already married to person A"
The options are really quite extensive.
Don't even get me started on the intricacies of children - like (not explcit, through game mechanics, not story) abortions...