I certainly wouldn't worry about encroaching re: friendships with any of the characters. So far, friendships have been written as part of a collaborative mod called NPC IEP. If you write a good friendship track and think it would make a good addition, just e-mail someone from the IEP team. If you'd rather keep it separate, that's cool too. You can't have too many mods, and even if another friendship track is written, it just offers people more choice
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