I'm pretty sure once they do get married (I wrote that they did in my fanfic of them also) but it's only the next logical step right? I mean, they don't HAVE to, they love each other so much as it is.
I agree on Linda too. Now whether you cover her up with a blanket or not, I do want to see the ending with her. Naturally the non-blanket option is more messy and probably brings more drama to the house, but I would love to see both sides of that coin. Bob's business probably goes to shit too with the inside trading with the twins. Poor bastard; wife fucks son/"roommate," business goes under, most likely a divorce, out of the house, living under a bridge like the 3 Billy Goats Gruff troll. Either that or he stays with Caroline & Sara while Linda/MC move out and maybe he gets a job in her company?
Sara I don't know about. She'll come around naturally with vaginal sex but what ending could there be with her?
Don't give a damn about the harem route, and won't do it either.
I care about one girl in this game, Caroline. My co-#1 favorite girl in my co-#1 favorite VN